5-aroylpyrrol-2-ylmethylarene derivatives

ABSTRACT

Compounds selected from the group of compounds represented by formula I: where: R10 is represented by the formula (A), (B), or (C): R20 is represented by the formula (U), (V), or (W): and the other substituents are as defined in the specification; and their pharmaceutically acceptable salts; are inhibitors of prostaglandin G/H synthase and are anti-inflammatory and analgesic agents.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a divisional of application Ser. No. 08/864,703, filed May 28, 1997 now U.S. Pat. No. 5,952,368 and also claims the benefit under 35 U.S.C. 119(e) of U.S. Provisional Application No. 60/018,691, filed May 30, 1996. The entire disclosure of the prior application is considered as being part of the disclosure of this divisional application and is hereby incorporated by reference therein.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to anti-inflammatory and analgesic compounds; especially to certain 5-aroylpyrrol-2-ylmethylarene derivatives, pharmaceutical compositions containing them, methods for their use and methods for preparing these compounds.

2. Description of the Related Art

U.S. Pat. No. 3,752,826 (Carson) discloses 5-aroylpyrrol-2-ylalkanoic acids and derivatives useful as anti-inflammatory agents.

European Patent Application Publication No. 0 071 399 (Syntex (U.S.A.) Inc.) discloses 2-benzyl-5-phenylpyrrolidine derivatives and analogs useful as cardiovascular agents and bronchodilators.

SUMMARY OF THE INVENTION

In a first aspect, this invention provides compounds selected from the group of compounds represented by formula I: ##STR4## where: R₁ and R₅ are independently H or alkyl, or R₁ and R₅ together are --(CH₂)₂ -- or --(CH₂)₃ --;

R₃ and R₄ are independently H, halo, alkyl, alkyloxy, or alkylthio;

R₁₀ is a group represented by formula (A), (B), or (C): ##STR5## where: X is O or S;

R₁₂ and R₁₆ are independently H, halo, alkyl, alkyloxy, alkylthio, cyano, or hydroxy;

R₁₃ and R₁₅ are independently H, halo, alkyl, alkyloxy, or alkylthio; and

R₁₄ is H, halo, alkyl, haloalkyl, amino, alkylamino, dialkylamino, alkyloxy, hydroxy, alkylthio, alkenyl, alkynyl, cyano, --SO₂ R₁₇ where R₁₇ is alkyl, or --SO₂ NR₁₈ R₁₉ where R₁₈ and R₁₉ are independently H or alkyl;

provided that at least two of R₁₂, R₁₃, R₁₄, R₁₅, and R₁₆ are H, and that if only two of R₁₂, R₁₃, R₁₄, R₁₅, and R₁₆ are H, the non-hydrogen substituents are not all adjacent; or

R₁₂, R₁₅, and R₁₆ are H and R₁₃ and R₁₄ together are --OCH₂ O--;

R₂₀ is a group represented by formula (U), (V), or (W): ##STR6## where: R₂₂ is H, halo, alkyl, cyano, trifluoromethyl, hydroxy, alkyloxy, or --CO₂ R₂₇ where R₂₇ is H or alkyl;

one of R₂₃, R₂₄, and R₂₅ is R₃₀ ; and

either all the remaining R₂₃, R₂₄, R₂₅, and R₂₆ are H; or one of the remaining R₂₃, R₂₄, R₂₅, and R₂₆ is halo, alkyl, cyano, trifluoromethyl, hydroxy, or alkyloxy; and

R₃₀ is --OH*, --NHH*, --NH*CHO, --NH*C(X)R₃₁, --NH*SO₂ R₃₁, --NH*C(X)NR₃₂ R₃₃, or --NH*SO₂ NR₃₂ R₃₄ ;

where:

H* is hydrogen, optionally replaced by an in vivo hydrolyzable protecting group;

R₃₁ is alkyl, haloalkyl, hydroxyalkyl, alkenyl, benzyl, aryl, cycloamino, --CH₂ SO₂ Me, or --(CH₂)_(n) R₃₅ where n is an integer from 2 to 5 and R₃₅ is alkylamino, dialkylamino, cycloamino, alkyloxy, acyloxy, or --CO₂ R₂₇ ;

R₃₂ is H, alkyl, or --(CH₂)_(n) OR₂₇ ;

R₃₃ is H, alkyl, haloalkyl, aryl, hydroxyalkyl, tetrahydrofuran-2-ylmethyl, --CH₂ CO₂ R₂₇, or --(CH₂)_(n) R₃₅ ; and

R₃₄ is H, alkyl, acetyl, hydroxyalkyl, or --(CH₂)_(n) R₃₅ ;

and their pharmaceutically acceptable salts.

In a second aspect, this invention provides pharmaceutical compositions containing a therapeutically effective amount of a compound of formula I or its pharmaceutically acceptable salt and a pharmaceutically acceptable excipient.

In a third aspect, this invention provides a method of treatment of a disease, in particular inflammatory and autoimmune diseases, in a mammal treatable by administration of a prostaglandin G/H synthase inhibitor, comprising administration of a therapeutically effective amount of a compound of formula I or its pharmaceutically acceptable salt.

DETAILED DESCRIPTION OF THE INVENTION Definitions

Unless otherwise stated, the following terms used in the specification and claims have the meanings given below:

"Alkyl" means a linear saturated monovalent hydrocarbon radical of one to six carbon atoms; or a branched or cyclic saturated monovalent hydrocarbon radical of three to six carbon atoms, e.g., methyl, ethyl, propyl, 2-propyl, cyclopropyl, cyclopropylmethyl, pentyl, and the like.

"Alkyloxy" means a radical --OR where R is alkyl, e.g., methoxy, ethoxy, propoxy, 2-propoxy, and the like.

"Alkylthio" means a radical --SR where R is alkyl, e.g., methylthio, butylthio, and the like.

"Acyloxy" means a radical --OC(O)R where R is alkyl, e.g., acetoxy, propionyloxy and the like.

"Alkenyl" means a linear monovalent hydrocarbon radical of two to six carbon atoms or a branched monovalent hydrocarbon radical of three to six carbon atoms, containing a double bond, e.g., ethenyl, propenyl, and the like.

"Alkynyl" means a linear monovalent hydrocarbon radical of two to six carbon atoms or a branched monovalent hydrocarbon radical of three to six carbon atoms, containing a triple bond, e.g., ethynyl, propynyl, butynyl, and the like.

"Halo" means fluoro, bromo, chloro and iodo, preferably fluoro and chloro.

"Haloalkyl" means alkyl substituted with one to three fluorine or chlorine atoms, e.g., --CH₂ Cl, --CF₃, --CH₂ CF₃, --CH₂ CCl₃, and the like.

"Alkylamino" means a radical --NHR where R is alkyl, e.g., methylamino, (1-methylethyl)amino, and the like.

"Dialkylamino" means a radical --NRR' where R and R' are independently alkyl, e.g., dimethylamino, methylethylamino, di(1-methylethyl)amino, and the like.

"Cycloamino" means a saturated monovalent, cyclic radical of 5 or 6 ring atoms of which the bonding ring atom is N; one non-adjacent other ring atom is NR (where R is hydrogen or alkyl), O, or C; and the remaining ring atoms are C. Examples include 1-pyrrolidino, 1-piperidino, 1-piperazino, N-methylpiperazino, 4-morpholino, and the like.

"Hydroxyalkyl" means a linear monovalent hydrocarbon radical of two to four carbon atoms or a branched monovalent hydrocarbon radical of three or four carbons substituted with one or two hydroxy groups, provided that: (1) the bonding carbon is unsubstituted, and (2) if two hydroxy groups are present, they are not both on the same carbon atom. Examples include 2-hydroxyethyl, 2-hydroxypropyl, 3-hydroxypropyl, 2-hydroxybutyl, 3-hydroxybutyl, 4-hydroxybutyl, 2,3-dihydroxypropyl, 1-(hydroxymethyl)-2-hydroxyethyl, 2,3-dihydroxybutyl, 3,4-dihydroxybutyl and 2-(hydroxymethyl)-3-hydroxypropyl, preferably 2-hydroxyethyl, 2,3-dihydroxypropyl, and 1-(hydroxymethyl)-2-hydroxyethyl.

"Aryl" means a monovalent aromatic hydrocarbon radical of 5 or 6 ring atoms, optionally containing one ring heteroatom selected from NR (where R is H or alkyl), O or S, and optionally mono- or di-substituted independently with --OH, --COOH, alkyl, alkyloxy, alkylthio, fluoro, chloro, --CF₃, and cyano; e.g., phenyl, thienyl, pyridyl, furanyl, 3-chlorophenyl, 4-(methylthio)phenyl, and the like.

An "in vivo hydrolyzable protecting group" means a group, replacing an acidic proton (such as a phenolic or amino proton) in a compound of formula I, that is capable of undergoing enzymatic hydrolysis within a living organism to form the unprotected (proton-containing) compound of formula I in vivo. Preferred in vivo hydrolyzable protecting groups are --C(O)R, where R is alkyl, or --C(O)CH(NH₂)R", where R" is the side chain of a D or L natural amino acid [e.g., for alanine, R" is methyl; for lysine, R" is --(CH₂)₄ NH₂ ]. Preferred R" groups are methyl, isopropyl and benzyl.

"Optional" or "optionally" means that the subsequently described event or circumstance may but need not occur, and that the description includes instances where the event or circumstance occurs and instances in which it does not. For example, "--OH* where H* is optionally replaced by an in vivo hydrolyzable protecting group" means that the in vivo hydrolyzable protecting group may but need not be present, and the description includes situations where --OH* is present as --OH, --OC(O)R, or --OC(O)CH(NH₂)R" where --C(O)R and --C(O)CH(NH₂)R" are in vivo hydrolyzable protecting groups as defined above.

A "pharmaceutically acceptable excipient" means an excipient that is useful in preparing a pharmaceutical composition that is generally safe, non-toxic and neither biologically nor otherwise undesirable, and includes an excipient that is acceptable for veterinary use as well as human pharmaceutical use. "A pharmaceutically acceptable excipient" as used in the specification and claims includes both one and more than one such excipient.

A "pharmaceutically acceptable salt" of a compound means a salt that is pharmaceutically acceptable and that possesses the desired pharmacological activity of the parent compound. Such salts include:

(1) acid addition salts, formed with inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid, and the like; or formed with organic acids such as acetic acid, propionic acid, hexanoic acid, cyclopentanepropionic acid, glycolic acid, pyruvic acid, lactic acid, malonic acid, succinic acid, malic acid, maleic acid, fumaric acid, tartaric acid, citric acid, benzoic acid, 3-(4-hydroxybenzoyl)benzoic acid, cinnamic acid, mandelic acid, methanesulfonic acid, ethanesulfonic acid, 1,2-ethanedisulfonic acid, 2-hydroxyethanesulfonic acid, benzenesulfonic acid, 4-chlorobenzenesulfonic acid, 2-napthalenesulfonic acid, 4-toluenesulfonic acid, camphorsulfonic acid, 4-methylbicyclo[2.2.2]oct-2-ene-1-carboxylic acid, glucoheptonic acid, 4,4'-methylenebis-(3-hydroxy-2-ene-1-carboxylic acid), 3-phenylpropionic acid, trimethylacetic acid, tertiary butylacetic acid, lauryl sulfuric acid, gluconic acid, glutamic acid, hydroxynapthoic acid, salicylic acid, stearic acid, muconic acid, and the like; or

(2) salts formed when an acidic proton present in the parent compound either is replaced by a metal ion, e.g., an alkali metal ion, an alkaline earth ion, or an aluminum ion; or coordinates with an organic base such as ethanolamine, diethanolamine, triethanolamine, tromethamine, N-methylglucamine, and the like.

"Treating" or "treatment" of a disease includes:

(1) preventing the disease, i.e. causing the clinical symptoms of the disease not to develop in a mammal that may be exposed to or predisposed to the disease but does not yet experience or display symptoms of the disease,

(2) inhibiting the disease, i.e., arresting the development of the disease or its clinical symptoms, or

(3) relieving the disease, i.e., causing regression of the disease or its clinical symptoms.

A "therapeutically effective amount" means the amount of a compound that, when administered to a mammal for treating a disease, is sufficient to effect such treatment for the disease. The "therapeutically effective amount" will vary depending on the compound, the disease and its severity and the age, weight, etc., of the mammal to be treated.

"Me" denotes methyl.

Nomenclature

The naming and numbering of the compounds of this invention is illustrated below. The pyrrole and the side chain of R₂₀ nucleus of the compounds of formula I are numbered as follows: ##STR7##

Side chains of the R₁₀ substituent are numbered as shown below: ##STR8##

The pyridine, thiophene, and furan rings can be linked to the pyrrole carbonyl group at any position on the ring other than 1-position. Accordingly, the pyridine ring can be 2-, 3-, or 4-pyridyl, the thiophene ring can be 2- or 3-thienyl, and the furan ring can be 2- or 3-furyl.

The nomenclature used in this application is generally based on the IUPAC recommendations. However, because a strict adherence to these recommendations would result in the names changing substantially when only a single substituent is changed, compounds have been named in a form that maintains consistency of nomenclature for the basic structure of the molecule.

Representative compounds of this invention are as follows:

Ia. Compounds of formula I where R₁ =R₃ =Me; R₄ =R₁₂ =R₁₃ =R₁₅ =R₁₆ =R₂₅ =H, R₁₄ =Cl; R₁₀ =group represented by formula (A); R₂₀ =group represented by formula (U); and R₂₄ =R₃₀ =NH*SO₂ R₃₁, are:

    ______________________________________                                         CPD#  R.sub.5                                                                              R.sub.22                                                                               R.sub.23                                                                            R.sub.26                                                                            R.sub.31   M.Pt. ° C.                     ______________________________________                                         1     H     H       H    H    Me         200.9-202                               2 H H H H CF.sub.3 159.5-160.2                                                 3 H H H H CH.sub.2 CH.sub.3 152.1-152.9                                        4 H H H H (CH.sub.2).sub.2 NMe.sub.2.HCl 232.5-232.7                           5 H H H H (CH.sub.2).sub.2 CO.sub.2 Me 147.6-148.2                             6 H H H H (CH.sub.2).sub.2 CO.sub.2 H 211                                      7 H H H H (CH.sub.2).sub.2 OH 132.2-134                                        8 H H H H (CH.sub.2).sub.2 -morpho- 243.4-243.7                                     line.HCl                                                                  9 H H H H CH═CH.sub.2 146.8-147                                            10 H H H H CH.sub.2 SO.sub.2 Me 187-188                                        11 Me H H H Me foam                                                            12 H Me H H Me 190-191                                                         13 H CF.sub.3 H H Me 204-206                                                   14 H Cl H H Me 215-217                                                         15 H CO.sub.2 Me H H Me 197-199                                                16 H CO.sub.2 H H H Me 248-250                                                 17 H F H H Me 211-212                                                          18 H OMe H H Me 164-165                                                        19 H CN H H Me 204                                                             20 H F H H CH.sub.2 CH.sub.3   151-151.3                                       21 H H Me H Me 175-177                                                         22 H H F H Me 183-185                                                          23 H H OH H Me 205                                                             24 H H CN H Me 187                                                             25 H Cl H H (CH.sub.2).sub.2 OH 159                                            26 H H H H Me H* = COMe 196                                                    27 H F H F Me 242.8-243.5                                                    ______________________________________                                    

and are named as follows:

1. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

2. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}trifluoromethanesulfonamide.

3. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}ethanesulfonamide.

4. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(dimethylamino)ethanesulfonamide hydrochloride.

5. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(methoxycarbonyl)ethanesulfonamide.

6. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(carboxy)ethanesulfonamide.

7. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

8. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(morpholin-4-yl)ethanesulfonamide hydrochloride.

9. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}ethanesulfonamide.

10. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl- 1H-pyrrol-2-ylmethyl]phenyl}-C-(methylsulfonyl)methanesulfonamide.

11. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylethan-1-yl]phenyl}-methanesulfonamide, m/e=430 (M+).

12. N-{3-Methyl-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

13. N-{3-Trifluoromethyl-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

14. N-{3-Chloro-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

15. N-{3-Carboxymethyl-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

16. N-{3-Carboxy-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

17. N-{3-Fluoro-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

18. N-{3-Methoxy-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

19. N-{3-Cyano-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

20. N-{3-Fluoro-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-ethanesulfonamide.

21. N-{2-Methyl-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

22. N-{2-Fluoro-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

23. N-{2-Hydroxy-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

24. N-{2-Cyano-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

25. N-{3-Chloro-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

26. N-Methoxycarbonyl-N-{4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

27. N-{3,5-Difluoro-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

Ib. Compounds of formula I where R₁ =Me; R₄ =R₁₃ =R₁₅ =R₁₆ =R₂₃ =R₂₅ =H; R₁₄ =Me; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ =NH*SO₂ R₃₁, are:

    ______________________________________                                         CPD#  R.sub.3                                                                              R.sub.5                                                                              R.sub.12                                                                            R.sub.22                                                                            R.sub.26                                                                            R.sub.31 M.Pt. ° C.                    ______________________________________                                         28    H     H     H    H    H    Me       138-139                                29 H H H H H (CH.sub.2).sub.2 OH foam                                          30 H Me H H H Me 147-148                                                       31 H H H Cl H Me 137-139                                                       32 H H H CF.sub.3 H Me 172-174                                                 33 H H H Br H Me 160-161                                                       34 H H H CN H Me 171-172                                                       35 H H H F H Me 164.8-165.3                                                    36 H H H F H (CH.sub.2).sub.2 OH foam                                          37 H H H Cl H (CH.sub.2).sub.2 OH 123-125                                      38 Me H H F H Me 200.8-201.6                                                   39 Me H H F H CH.sub.2 CH.sub.3 140.4-141.9                                    40 Me H H CN H Me 204.3-207.4                                                  41 H H Me F H Me 159.6-160.0                                                   42 H H H F H CH(CH.sub.2 OH).sub.2 133.3-133.6                                 43 Me H Me Cl H Me 191.8-192.4                                                 44 H H H F H (CH.sub.2).sub.3 OH 116.7-119.8                                   45 Me H Me CN H Me   203-205.2                                                 46 Me H H F H (CH.sub.2).sub.2 OH 151.5-152.9                                  47 Me H H Cl H Me 208.4-209.4                                                  48 H H Me F H (CH.sub.2).sub.2 OH 135.4-136.8                                  49 Me H Me F H Me 198.3-199                                                    50 H H Me H H (CH.sub.2).sub.2 OH 63-66                                        51 H H H F F (CH.sub.2).sub.2 OH 154.2-155.2                                   52 H H H F F Me 205.5-206.2                                                    53 H H OMe F H (CH.sub.2).sub.2 OH 70.5-76                                   ______________________________________                                    

and are named as follows:

28. N-{4-[5-(4-Methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

29. N-{4-[5-(4-Methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide, m/e=412 (M+).

30. N-{4-[5-(4-Methylbenzoyl)-1-methyl-1H-pyrrol-2-ylethan-1-yl]phenyl}methanesulfonamide.

31. N-{3-Chloro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

32. N-{3-Trifluoromethyl-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

33. N-{3-Bromo-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

34. N-{3-Cyano-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

35. N-{3-Fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

36. N-{3-Fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide, m/e=430 (M+).

37. N-{3-Chloro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

38. N-{3-Fluoro-4-[5-(4-methylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

39. N-{3-Fluoro-4-[5-(4-methylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-ethanesulfonamide.

40. N-{3-Cyano-4-[5-(4-methylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

41. N-{3-Fluoro-4-[5-(2,4-dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

42. N-{3-Fluoro-4-[5-(4-methylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-1-(hydroxymethyl)-2-(hydroxy)ethanesulfonamide.

43. N-{3-Chloro-4-[5-(2,4-dimethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

44. N-{3-Fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3-(hydroxy)propanesulfonamide.

45. N-{3-Cyano-4-[5-(2,4-dimethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

46. N-{3-Fluoro-4-[5-(4-methylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

47. N-{3-Chloro-4-[5-(4-methylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

48. N-{3-Fluoro-4-[5-(2,4-dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

49. N-{3-Fluoro-4-[5-(2,4-dimethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

50. N-{4-[5-(2,4-dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)-ethanesulfonamide.

51. N-{3,5-Difluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

52. N-{3,5-Difluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide

53. N-{3-Fluoro-4-[5-(2-methoxy-4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide

Ic. Compounds of formula I where R₁ =Me; R₄ =R₅ =R₁₃ =R₁₅ =R₁₆ =R₂₃ =R₂₅ =H; R₁₄ =H; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ =NH*SO₂ R₃₁, are:

    ______________________________________                                         CPD#  R.sub.3                                                                              R.sub.12                                                                              R.sub.22                                                                            R.sub.26                                                                            R.sub.31   M.Pt. ° C.                      ______________________________________                                         54    Me    H      H    H    Me         149-150                                  55 Me H H H (CH.sub.2).sub.2 CO.sub.2 Me 121.5-121.9                           56 Me H H H (CH.sub.2).sub.2 CO.sub.2 H 181                                    57 Me H H H (CH.sub.2).sub.2 OH 158.2-158.6                                    58 Me H H H CH.sub.2 CH.sub.3 117.7-118.8                                      59 Me H Cl H Me 177-179                                                        60 Me H F H Me 167-168                                                         61 Me H OMe H Me 133-134                                                       62 Me H CF.sub.3 H Me 170-171                                                  63 Me H F H (CH.sub.2).sub.2 OH   149-149.3                                    64 H H H H Me 137-138                                                          65 H H F H Me 137.2-137.5                                                      66 H H F H (CH.sub.2).sub.2 OH foam                                            67 Me H F H Me H* = COMe 172                                                   68 Me H F H CH.sub.2 CH.sub.3 141.1-143.1                                      69 H H Cl H (CH.sub.2).sub.2 OH 149.9-151.1                                    70 H H Cl H Me 180.2-181.6                                                     71 H Me F H Me 178.7-179.2                                                     72 H OMe F H Me 184.4-184.9                                                    73 H OMe F H (CH.sub.2).sub.2 OH foam                                          74 H F F H Me 140-141                                                          75 H H F F Me 192.6-193.1                                                      76 H Cl F H (CH.sub.2).sub.2 OH 55.5-58.5                                      77 H F F H (CH.sub.2).sub.2 OH 54.2-58.1                                       78 H H F F C.sub.2 H.sub.5 138.5-139.4                                         79 Me H F F (CH.sub.2).sub.2 OH   171-173.8                                    80 H H F F (CH.sub.2).sub.2 OH 156.5-157                                     ______________________________________                                    

and are named as follows:

54. N-{4-[5-Benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

55. N-{4-[5-Benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(methoxycarbonyl)ethanesulfonamide.

56. N-{4-[5-Benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(carboxy)ethanesulfonamide.

57. N-{4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

58. N-{4-[5-Benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}ethanesulfonamide

59. N-{3-Chloro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

60. N-{3-Fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

61. N-{3-Methoxy-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

62. N-{3-Trifluoromethyl-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

63. N-{3-Fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

64. N-{4-[5-Benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

65. N-{3-Fluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

66. N-{3-Fluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)-ethanesulfonamide, m/e=416 (M+).

67. N-Acetyl-N-{3-Fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

68. N-{3-Fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}ethanesulfonamide.

69. N-{3-Chloro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)-ethanesulfonamide.

70. N-{3-Chloro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

71. N-{3-Fluoro-4-[5-(2-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

72. N-{3-Fluoro-4-[5-(2-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

73. N-{3-Fluoro-4-[5-(2-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)-ethanesulfonamide, m/e=446 (M+).

74. N-{3-Fluoro-4-[5-(2-fluorobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

75. N-{3,5-Difluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

76. N-{3-Fluoro-4-[5-(2-chlorobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)-ethanesulfonamide.

77. N-{3-Fluoro-4-[5-(2-fluorobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)-ethanesulfonamide.

78. N-{3,5-Difluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}ethanesulfonamide.

79. N-{3,5-Difluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)-ethanesulfonamide.

80. N-{3,5-Difluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)-ethanesulfonamide.

Id. Compounds of formula I where R₁ =Me; R₄ =R₅ =R₁₃ =R₁₅ =R₁₆ =R₂₃ =R₂₅ =R₂₆ =H; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ =NH*SO₂ R₃₁, are:

    ______________________________________                                         CPD#  R.sub.12                                                                              R.sub.14 R.sub.3                                                                            R.sub.22                                                                            R.sub.31 M.Pt. ° C.                      ______________________________________                                         81    H      NMe.sub.2                                                                               H   H    Me       210-211                                  82 H Cl H H Me 164                                                             83 H Br H H Me 169-170                                                         84 Me Me H H Me 129-130                                                        85 H OMe H H Me 147-148                                                        86 H SMe H H Me 185-186                                                        87 H NH.sub.2 H H Me 203.3-205                                                 88 H NMe.sub.2 H F Me 199                                                      89 H NMe.sub.2 H CN Me 203                                                     90 H CH.sub.2 CH.sub.3 H H Me 115-116                                          91 H cyclo- H H Me foam                                                          propyl                                                                       92 Me H Me H Me 149-151                                                        93 H SMe Me H Me 182.6-183.3                                                   94 H SMe Me H CH.sub.2 CH.sub.3 Na.sup.+ >280                                  95 H OMe Me F Me 186.6-187.5                                                   96 H OMe H F Me 180.9-181.8                                                    97 H OMe Me F CH.sub.2 CH.sub.3 109-110                                        98 H OMe Me F (CH.sub.2).sub.2 OH 139.5-140.5                                  99 H OMe H CN Me 164.7-166.7                                                   100 H SMe Me F CH.sub.2 CH.sub.3 148.1-148.7                                   101 H F Me F Me 169.2-169.7                                                    102 H F Me F CH.sub.2 CH.sub.3 138.2-139.2                                     103 H SMe Me F Me 188.8-189.5                                                  104 H F Me F (CH.sub.2).sub.2 OH 139.1-140.2                                   105 H OMe Me F CH═CH.sub.2 90-92                                           106 H OMe H F (CH.sub.2).sub.2 OH 135-137                                      107 H SMe Me F (CH.sub.2).sub.2 OCOMe 146.2-146.7                              108 H SMe Me F (CH.sub.2).sub.2 OH 174.9-175.5                                 109 H CF.sub.3 Me F Me   177-177.8                                             110 H CF.sub.3 Me F CH.sub.2 CH.sub.3 132.4-133.2                              111 H cyclo- H F Me 140.5-142                                                    propyl                                                                       112 H CF.sub.3 Me Cl Me   203-204.8                                            113 Cl OMe H F Me 150-151                                                      114 Cl OMe H F (CH.sub.2).sub.2 OH                                             115 F F H F Me 168.4-169.1                                                     116 F F H F (CH.sub.2).sub.2 OH 80-84                                          117 H 0C.sub.2 H.sub.5 H F Me 134.6-134.9                                      118 OMe F H F Me   162-162.3                                                   119 H OC.sub.2 H.sub.5 H F CH.sub.2 CH.sub.3 135.3-135.6                       120 OMe F H F (CH.sub.2).sub.2 OH 58.1-64.1                                    121 H OC.sub.2 H.sub.5 H F (CH.sub.2).sub.2 OH   105-106.5                     122 Me OMe H F Me 149.5-150.1                                                  123 Me OMe H F (CH.sub.2).sub.2 OH 56.3-61.7                                   124 Me Br H F Me 177.5-178                                                     125 Me Br H F (CH.sub.2).sub.2 OH 70.5-71.5                                    126 F OMe H F Me 164.5-165.1                                                   127 H Br H F Me 178.6-179.5                                                    128 H Br H F (CH.sub.2).sub.2 OH 53.5-56                                       129 H Cl H F Me 175.4-176.1                                                    130 H Cl H F (CH.sub.2).sub.2 OH 143.1-144                                   ______________________________________                                    

and are named as follows:

81. N-{4-[5-(4-Dimethylaminobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

82. N-{4-[5-(4-Chlorobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

83. N-{4-[5-(4-Bromobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

84. N-{4-[5-(2,4-Dimethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

85. N-{4-[5-(4-Methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]-phenyl}methanesulfonamide.

86. N-{4-[5-(4-Methylthiobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

87. N-{4-[5-(4-Aminobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

88. N-{3-Fluoro-4-[5-(4-dimethylaminobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

89. N-{3-Cyano-4-[5-(4-dimethylaminobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

90. N-{4-[5-(4-Ethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

91. N-{4-[5-(4-Cyclopropylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

92. N-{4-[5-(2-Methylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

93. N-{4-[5-(4-Methylthiobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

94. N-{4-[5-(4-Methylthiobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}ethanesulfonamide sodium salt.

95. N-{3-Fluoro-4-[5-(4-methoxybenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

96. N-{3-Fluoro-4-[5-(4-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

97. N-{3-Fluoro-4-[5-(4-methoxybenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-ethanesulfonamide.

98. N-{3-Fluoro-4-[5-(4-methoxybenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

99. N-{3-Cyano-4-[5-(4-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

100. N-{3-Fluoro-4-[5-(4-methylthiobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-ethanesulfonamide.

101. N-{3-Fluoro-4-[5-(4-fluorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

102. N-{3-Fluoro-4-[5-(4-fluorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-ethanesulfonamide.

103. N-{3-Fluoro-4-[5-(4-methylthiobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

104. N-{3-Fluoro-4-[5-(4-fluorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

105. N-{3-Fluoro-4-[5-(4-methoxybenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-ethenesulfonamide.

106. N-{3-Fluoro-4-[5-(4-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

107. N-{3-Fluoro-4-[5-(4-methylthiobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(acetoxy)ethanesulfonamide.

108. N-{3-Fluoro-4-[5-(4-methylthiobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

109. N-{3-Fluoro-4-[5-(4-trifluoromethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

110. N-{3-Fluoro-4-[5-(4-trifluoromethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-ethanesulfonamide.

111. N-{3-Fluoro-4-[5-(4-cyclopropylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

112. N-{3-Chloro-4-[5-(4-trifluoromethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

113. N-{3-Fluoro-4-[5-(2-chloro-4-methoxylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

114. N-{3-Fluoro-4-[5-(2-chloro-4-methoxylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide, m/e=481 (M+H).

115. N-{3-Fluoro-4-[5-(2,4-difluorobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

116. N-{3-Fluoro-4-[5-(2,4-difluorobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)-ethanesulfonamide.

117. N-{3-Fluoro-4-[5-(4-ethoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

118. N-{3-Fluoro-4-[5-(4-fluoro-2-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

119. N-{3-Fluoro-4-[5-(4-ethoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-ethanesulfonamide.

120. N-{3-Fluoro-4-[5-(4-fluoro-2-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

121. N-{3-Fluoro-4-[5-(4-ethoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

122. N-{3-Fluoro-4-[5-(4-methoxy-2-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

123. N-{3-Fluoro-4-[5-(4-methoxy-2-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

124. N-{3-Fluoro-4-[5-(4-bromo-2-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

125. N-{3-Fluoro-4-[5-(4-bromo-2-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

126. N-{3-Fluoro-4-[5-(2-fluoro-4-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

127. N-{3-Fluoro-4-[5-(4-bromobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

128. N-{3-Fluoro-4-[5-(4-bromobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

129. N-{3-Fluoro-4-[5-(4-chlorobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

130. N-{3-Fluoro-4-[5-(4-chlorobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

Ie. Compounds of formula I where R₁ +R₅ =--(CH₂)₂ --; R₃ =R₄ =R₁₂ =R₁₃ =R₁₅ =R₁₆ =R₂₃ =R₂₅ =R₂₆ =H; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ =NH*SO₂ R₃₁, are:

    ______________________________________                                         CPD#      R.sub.14                                                                               R.sub.22 R.sub.31                                                                              M.Pt. ° C.                            ______________________________________                                         131       H       Cl       Me     85-95                                          132 OMe Cl Me   183-183.5                                                      133 OMe Cl (CH.sub.2).sub.2 OH 74.5-84.5                                       134 H Cl (CH.sub.2).sub.2 OH 80.5-109                                          135 H F Me   162-162.8                                                         136 OMe H Me   146-147.1                                                       137 OMe F (CH.sub.2).sub.2 OH   146-147.1                                      138 OMe F Me 159-162                                                           139 H F (CH.sub.2).sub.2 OH   159-161.5                                      ______________________________________                                    

and are named as follows:

131. N-{3-Chloro-4-[5-Benzoyl-1,2-dihydro-3H-pyrrolizin-1-yl]phenyl}methanesulfonamide.

132. N-{3-Chloro-4-[5-(4-methoxybenzoyl)-1,2-dihydro-3H-pyrrolizin-1-yl]phenyl}-methanesulfonamide.

133. N-{3-Chloro-4-[5-(4-methoxybenzoyl)-1,2-dihydro-3H-pyrrolizin-1-yl]phenyl}-2-(hydroxy)ethanesulfonamide.

134. N-{3-Chloro-4-[5-benzoyl-1,2-dihydro-3H-pyrrolizin-1-yl]phenyl}-2-(hydroxy)-ethanesulfonamide.

135. N-{3-Fluoro-4-[5-benzoyl-1,2-dihydro-3H-pyrrolizin-1-yl]phenyl}methanesulfonamide.

136. N-{4-[5-(4-methoxybenzoyl)-1,2-dihydro-3H-pyrrolizin-1-yl]phenyl}methanesulfonamide.

137. N-{3-Fluoro-4-[5-(4-methoxybenzoyl)-1,2-dihydro-3H-pyrrolizin-1-yl]phenyl}-2-(hydroxy)-ethanesulfonamide.

138. N-{3-Fluoro-4-[5-(4-methoxybenzoyl)-1,2-dihydro-3H-pyrrolizin-1-yl]phenyl}-methanesulfonamide.

139. N-{3-Fluoro-4-[5-benzoyl-1,2-dihydro-3H-pyrrolizin-1-yl]phenyl}-2-(hydroxy)-ethanesulfonamide.

IIa. Compounds of formula I where R₁ =R₃ =Me; R₄ =R₅ =R₁₂ =R₁₃ =R₁₅ =R₁₆ =R₂₃ =R₂₅ =R₂₆ =H; R₁₄ =Cl; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ =NH*SO₂ NR₃₂ R₃₄, are:

    ______________________________________                                         CPD#     R.sub.22                                                                               R.sub.32  R.sub.34                                                                              M.Pt. ° C.                            ______________________________________                                         140      H       Me        Me      57-142                                        141 H H H 175-177                                                              142 H H COCH.sub.3 164.5-170                                                   143 H (CH.sub.2).sub.2 OH (CH.sub.2).sub.2 OH 122-124                          144 Cl Me Me 175-177                                                           145 F Me Me 185-186                                                            146 F H H 179.8-180                                                            147 CN H H 192                                                                 148 Cl H H 179-180                                                           ______________________________________                                    

and are named as follows:

140. 1-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

141. 1-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

142. 1-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-acetylsulfamide.

143. 1-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]-phenyl}-3,3-bis-(2-hydroxyethyl)sulfamide.

144. 1-{3-Chloro-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

145. 1-{3-Fluoro-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

146. 1-{3-Fluoro-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

147. 1-{3-Cyano-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

148. 1-{3-Chloro-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

IIb. Compounds of formula I where R₁ =Me; R₄ =R₅ =R₁₃ =R₁₅ =R₁₆ =R₂₃ =R₂₅ =H; R₁₄ =Me; R₁₀ = is a group represented by formula (A); R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ =NH*SO₂ NR₃₂ R₃₄, are:

    ______________________________________                                         CPD#  R.sub.3                                                                              R.sub.12                                                                              R.sub.22                                                                            R.sub.26                                                                            R.sub.32                                                                              R.sub.34                                                                               M.Pt. ° C.                  ______________________________________                                         149   H     H      H    H    Me     Me      130-139                              150 H H H H H H 152-                                                                  152.8                                                                   151 H H Cl H Me Me 157-159                                                     152 H H CF.sub.3 H Me Me 114-115                                               153 H H Br H Me Me 157-158                                                     154 H H F H H H 153.1-                                                                153.9                                                                   155 H H F H Me Me 158-                                                                158.9                                                                   156 H H Cl H H H 166.3-                                                               166.9                                                                   157 H H F H (CH.sub.2).sub.2 OH CH.sub.2).sub.2 OH 108.4-                             108.7                                                                   158 H H F H H Me foam                                                          159 H H F H H CH.sub.2 CH.sub.3 foam                                           160 H H F H H (CH.sub.2).sub.2 OMe foam                                        161 Me H F H H Me 166.5-                                                              167.                                                                    162 Me H F H H H 189.5-                                                               189.9                                                                   163 Me H F H Me Me 169.6-                                                             170.5                                                                   164 H H F H H (CH.sub.2).sub.2 OH 120.2-                                              121.8                                                                   165 H Me F H H H 149-152                                                       166 Me Me Cl H Me Me 58.9-61.8                                                 167 Me Me Cl H H H 76.5-80.2                                                   168 H Me H H H CH.sub.2 CH.sub.3 66-70                                         169 H Me H H H H   77-88.6                                                     170 H Me H H H Me 76-80                                                        171 Me Me CN H H H 161.5-                                                             165                                                                     172 H Me F H H Me 65.1-67.5                                                    173 Me Me CN H Me Me 67-71                                                     174 H H F F H H 202.2-                                                                202.8                                                                   175 H Me F H H COCH.sub.3   94-97.5                                          ______________________________________                                    

and are named as follows:

149. 1-{4-[5-(4-Methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

150. 1-{4-[5-(4-Methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

151. 1-{3-Chloro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

152. 1-{3-Trifluoromethyl-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

153. 1-{3-Bromo-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

154. 1-{3-Fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

155. 1-{3-Fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

156. 1-{3-Chloro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

157. 1-{3-Fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-bis-(2-hydroxyethyl)sulfamide.

158. 1-{3-Fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3-methylsulfamide, m/e=415 (M+).

159. 1-{3-Fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3-ethylsulfamide, m/e=429 (M+).

160. 1-{3-Fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3-(2-methoxyethyl)sulfamide, m/e=459 (M+).

161. 1-{3-Fluoro-4-[5-(4-methylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-methylsulfamide.

162. 1-{3-Fluoro-4-[5-(4-methylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

163. 1-{3-Fluoro-4-[5-(4-methylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

164. 1-{3-Fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3-(2-hydroxyethyl)sulfamide.

165. 1-{3-Fluoro-4-[5-(2,4-dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

166. 1-{3-Chloro-4-[5-(2,4-dimethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

167. 1-{3-Chloro-[5-(2,4-dimethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

168. 1-{4-[5-(2,4-Dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3-ethylsulfamide.

169. 1-{4-[5-(2,4-Dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

170. 1-{4-[5-(2,4-Dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3-methylsulfamide.

171. 1-{3-Cyano-4-[5-(2,4-dimethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-sulfamide.

172. 1-{3-Fluoro-4-[5-(2,4-dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3-methylsulfamide.

173. 1-{3-Cyano-4-[5-(2,4-dimethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

174. 1-{3,5-Difluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

175. 1-{3-Fluoro-4-[5-(2,4-dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3-acetylsulfamide.

IIc. Compounds of formula I where R₁ =Me; R₄ =R₅ =R₁₃ =R₁₅ =R₁₆ =R₂₃ =R₂₅ =H, R₁₄ =H; R₁₀ = is a group represented by formula (A); R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ =NH*SO₂ NR₃₂ R₃₄, are:

    ______________________________________                                         CPD#  R.sub.3                                                                               R.sub.12                                                                               R.sub.22                                                                             R.sub.26                                                                             R.sub.32                                                                            R.sub.34                                                                            M.Pt. ° C.                   ______________________________________                                         176   Me     H       H     H     Me   Me   126.5-127.4                           177 Me H H H H H 179.1-180                                                     178 Me H Cl H Me Me 185-187                                                    179 Me H F H Me Me 182-183                                                     180 Me H OMe H Me Me 166-167                                                   181 Me H CF.sub.3 H Me Me 164-165                                              182 H H F H H H 168.6-169.2                                                    183 H H CN H H H 176.4-176.8                                                   184 H H Cl H H H 167.4-168.3                                                   185 H Cl F H Me H   99-150.5                                                   186 H Cl F H Me Me 68.4-69.8                                                   187 H Cl F H H H 171.8-172.6                                                   188 H F F H Me Me 114.4-114.9                                                  189 H H F F H H 199.8-200.2                                                    190 H H F F H Me   179-180.5                                                   191 H OMe F H H H 144.7-146                                                    192 H Me F H H H 186.3-186.6                                                   193 Me H F F H H 222.5-223                                                     194 H H F F Me Me   158-159.3                                                ______________________________________                                    

and are named as follows:

176. 1-{4-[5-Benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

177. 1-{4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

178. 1-{3-Chloro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

179. 1-{3-Fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

180. 1-{3-Methoxy-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

181. 1-{3-Trifluoromethyl-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

182. 1-{3-Fluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

183. 1-{3-Cyano-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

184. 1-{3-Chloro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

185. 1-{3-Fluoro-4-[5-(2-chlorobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3-methylsulfamide.

186. 1-{3-Fluoro-4-[5-(2-chlorobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

187. 1-{3-Fluoro-4-[5-(2-chlorobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

188. 1-{3-Fluoro-4-[5-(2-fluorobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3-3-dimethylsulfamide.

189. 1-{3,5-Difluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

190. 1-{3,5-Difluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3-methylsulfamide.

191. 1-{3-Fluoro-4-[5-(2-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

192. 1-{3-Fluoro-4-[5-(2-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

193. 1-{3,5-Difluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

194. 1-{3,5-Difluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

IId. Compounds of formula I where R₁ =Me; R₄ =R₅ =R₁₃ =R₁₅ =R₁₆ =R₂₃ =R₂₅ =R₂₆ =H; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ =NH*SO₂ NR₃₂ R₃₄, are:

    ______________________________________                                         CPD#  R.sub.12                                                                               R.sub.14                                                                               R.sub.3                                                                             R.sub.22                                                                            R.sub.32                                                                             R.sub.34                                                                            M.Pt. ° C.                   ______________________________________                                         195   H       OMe     H    H    Me    Me   147-148                               196 H OMe H F H H 133                                                          197 H OMe Me F H H   175-176.5                                                 198 H OMe Me F Me Me 165.3-166.2                                               199 H SMe H H Me Me 117-118                                                    200 H SMe Me H Me Me 161.4-163.2                                               201 H NMe.sub.2 H F H H 193                                                    202 H OMe H CN H H 193                                                         203 H NMe.sub.2 H CN H H 185                                                   204 H F Me F H H 184.8-185.2                                                   205 H F Me F Me Me   151-151.4                                                 206 H F Me F H Me 128-129                                                      207 H SMe Me F Me Me 177.8-178.3                                               208 H CF.sub.3 Me F Me Me 188-189                                              209 H cyclo- H F Me Me 128.6-129.2                                               propyl                                                                       210 H CF.sub.3 Me F H Me   179-179.9                                           211 H CF.sub.3 Me Cl H H 200-201                                               212 F F H F H Me 90-92                                                         213 H OC.sub.2 H.sub.5 H F Me Me 158.2-158.7                                   214 OMe F H F Me Me 159-160                                                    215 OMe F H F H Me 152.2-157.5                                                 216 H OC.sub.2 H.sub.5 H F H H 152.4-153.2                                     217 Me OMe H F H H 157.7-158.3                                                 218 Me Br H F H H 162.3-162.9                                                  219 OMe F H F H H 101.4-108.5                                                  220 F OMe H F H H 168.9-171.5                                                  221 H Cl H F H H   190-190.3                                                 ______________________________________                                    

and are named as follows:

195. 1-{4-[5-(4-Methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

196. 1-{3-Fluoro-4-[5-(4-Methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

197. 1-{3-Fluoro-4-[5-(4-Methoxybenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-sulfamide.

198. 1-{3-Fluoro-4-[5-(4-Methoxybenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

199. 1-{4-[5-(4-Methylthiobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

200. 1-{4-[5-(4-Methylthiobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

201. 1-{3-Fluoro-4-[5-(4-dimethylaminobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-sulfamide.

202. 1-{3-Cyano-4-[5-(4-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-sulfamide.

203. 1-{3-Cyano-4-[5-(4-dimethylaminobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-sulfamide.

204. 1-{3-Fluoro-4-[5-(4-fluorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-sulfamide.

205. 1-{3-Fluoro-4-[5-(4-fluorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

206. 1-{3-Fluoro-4-[5-(4-fluorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-methylsulfamide.

207. 1-{3-Fluoro-4-[5-(4-methylthiobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

208. 1-{3-Fluoro-4-[5-(4-trifluoromethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

209. 1-{3-Fluoro-4-[5-(4-cyclopropylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

210. 1-{3-Fluoro-4-[5-(4-trifluoromethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-methylsulfamide.

211. 1-{3-Chloro-4-[5-(4-trifluoromethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-sulfamide.

212. 1-{3-Fluoro-4-[5-(2,4-difluorobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3-methylsulfamide.

213. 1-{3-Fluoro-4-[5-(4-ethoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

214. 1-{3-Fluoro-4-[5-(4-fluoro-2-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

215. 1-{3-Fluoro-4-[5-(4-fluoro-2-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3-methylsulfamide.

216. 1-{3-Fluoro-4-[5-(4-ethoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

217. 1-{3-Fluoro-4-[5-(4-methoxy-2-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

218. 1-{3-Fluoro-4-[5-(4-bromo-2-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-sulfamide.

219. 1-{3-Fluoro-4-[5-(4-fluoro-2-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-sulfamide.

220. 1-{(3-Fluoro-4-[5-(2-fluoro-4-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-sulfamide.

221. 1-{3-Fluoro-4-[5-(4-chlorobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfaminde.

IIe. Compounds of formula (I) where R₁ +R₅ =--(CH₂)₂ --; R₃ =R₄ =R₁₂ =R₁₃ =R₁₅ =R₁₆ =R₂₃ =R₂₅ =R₂₆ =H; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ =NHSO₂ NR₃₂ R₃₄, are:

    ______________________________________                                         CPD#     R.sub.14                                                                               R.sub.22                                                                               R.sub.32                                                                             R.sub.34                                                                            M.Pt. ° C.                          ______________________________________                                         222      H       Cl      H     H    115-126                                      223 OMe Cl H H 112-130                                                         224 H F H H                                                                    225 OMe F H H 117.5-172.9                                                    ______________________________________                                    

and are named as follows:

222. 1-{3-Chloro-4-[5-benzoyl-1,2-dihydro-3H-pyrrolizin-1-yl]phenyl}sulfamide.

223. 1-{3-Chloro-4-[5-(4-methoxybenzoyl)-1,2-dihydro-3H-pyrrolizin-1-yl]phenyl}sulfamide.

224. 1-{3-Fluoro-4-[5-benzoyl-1,2-dihydro-3H-pyrrolizin-1-yl]phenyl}sulfamide.

225. 1-{3-Fluoro-4-[5-(4-methoxybenzoyl)-1,2-dihydro-3H-pyrrolizin-1-yl]phenyl}sulfamide.

IIIa. Compounds of formula I where R₁ =R₃ =Me; R₄ =R₅ =R₁₂ =R₁₃ =R₁₅ =R₁₆ =R₂₂ =R₂₃ =R₂₅ =R₂₆ =H; R₁₄ =Cl; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ =NH*C(O)NR₃₂ R₃₃, are:

    ______________________________________                                         CPD#        R.sub.32 R.sub.33  M.Pt. ° C.                               ______________________________________                                         226         Me       Me          199-201.9                                       227 H phenyl 213.5-214.5                                                       228 H 3-Cl-phenyl 219.5-221.5                                                  229 H CH.sub.2 CO.sub.2 H 193.3-194                                            230 H (CH.sub.2).sub.2 OH 209.6-210.2                                          231 H H 214.6-215                                                            ______________________________________                                    

and are named as follows:

226. 1-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylurea.

227. 1-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-phenylurea.

228. 1-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-(3chlorophenyl)-urea.

229. 1-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-carboxymethylurea.

230. 1-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-(2-hydroxyethyl)-urea.

231. 1-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}urea.

IIIb. Compounds of formula I where R₁ =Me; R₃ =R₄ =R₅ =R₁₂ =R₁₃ =R₁₅ =R₁₆ =R₂₃ =R₂₅ =R₂₆ =H; R₁₄ =Me; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ =NH*C(O)NR₃₂ R₃₃, are:

    ______________________________________                                         CPD#      R.sub.22                                                                               R.sub.32                                                                               R.sub.33                                                                              M.Pt. ° C.                             ______________________________________                                         232       H       Me      Me     167.2-167.7                                     233 H H H 188.4-189.9                                                          234 F H (CH.sub.2).sub.2 OH 193.7-194.7                                      ______________________________________                                    

and are named as follows:

232. 1-{4-[5-(4-Methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylurea.

233. 1-{4-[5-(4-Methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}urea.

234. 1-{3-Fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-3-(2-hydroxyethyl)urea.

IV. Compounds of formula I where R₁ =R₃ =Me; R₄ =R₅ =R₁₂ =R₁₃ =R₁₅ =R₁₆ =R₂₃ =R₂₅ =R₂₆ =H; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ =NH*C(S)NR₃₂ R₃₃, are:

    ______________________________________                                         CPD#    R.sub.14                                                                               R.sub.22                                                                               R.sub.32                                                                             R.sub.33                                                                               M.Pt. ° C.                        ______________________________________                                         235     Cl      H       H     CH.sub.2 CH.sub.3                                                                      80-82                                      236 Cl H H Me 80-82                                                            237 Cl H H phenyl 158.3-159                                                    238 Cl H H 2-Cl-phenyl 164.5-166                                               239 Cl H H 4-Cl-phenyl   176-177.5                                             240 Me F H tetrahydro- 131.4-132                                                   furan-2-yl-                                                                    methyl                                                                   ______________________________________                                    

and are named as follows;

235. 1-{4-[5-(4-Chlorobenzoyl)-1,2-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-ethyl-2-thiourea.

236. 1-{4-[5-(4-Chlorobenzoyl)-1,2-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-methyl-2-thiourea.

237. 1-{4-[5-(4-Chlorobenzoyl)-1,2-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-phenyl-2-thiourea.

238. 1-{4-[5-(4-Chlorobenzoyl)-1,2-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-(2-chlorophenyl)-2-thiourea.

239. 1-{4-[5-(4-Chlorobenzoyl)-1,2-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-(4-chlorophenyl)-2-thiourea.

240. 1-{3-Fluoro-4-[5-(4-methylbenzoyl)-1,2-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-(tetrahydrofuran-2-ylmethyl)-2-thiourea.

V. Compounds of formula I where R₁ =R₃ =Me; R₄ =R₅ =R₁₂ =R₁₃ =R₁₅ =R₁₆ =R₂₃ =R₂₅ =R₂₆ =H; R₁₄ =Cl; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ =NH*C(O)R₃₁, are:

    ______________________________________                                         CPD#      R.sub.22 R.sub.31    M.Pt. ° C.                               ______________________________________                                         241       H        Me            189-189.9                                       242 H CH.sub.3 231.5-234.5                                                     243 H CH.sub.2 F 180.5-181.7                                                   244 F Me 184.3-185.1                                                           245 H morpholino 209.5-210.5                                                   246 H 4-Me piperazino 141.8-142.6                                              247 H piperazino >280                                                          248 H piperazino.HCl >280                                                      249 H pyrrolidino 217.5-218.4                                                ______________________________________                                    

and are named as follows:

241. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}acetamide.

242. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}trifluoroacetamide.

243. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}fluoroacetamide.

244. N-{3Fluoro-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}acetamide.

245. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}morpholin-4-yl)carboxamide.

246. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-(4-methylpiperazin-1-yl)carboxamide.

247. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}piperazin-1-ylcarboxamide.

248. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}piperazin-1-ylcarboxamide hydrochloride.

249. N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}pyrrolidin-1-ylcarboxamide.

VI Compounds of formula I where R₁ =Me; R₄ =R₅ =R₁₃ =R₁₅ =R₁₆ =R₂₃ =R₂₅ =R₂₆ =H; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ =NHH* are:

    ______________________________________                                         CPD#  R.sub.3                                                                              R.sub.12                                                                              R.sub.14                                                                            R.sub.22                                                                            R.sub.30   M.Pt. ° C.                      ______________________________________                                         250   Me    H      Cl   H    NH.sub.2   142.8-145.5                              251 Me H SMe F NH.sub.2 199.1-199.7                                            252 H H OMe F NH.sub.2 146.4-147.7                                             253 H H Me F NH.sub.2 142.4-143                                                254 H H H F NH.sub.2 130.3-131.2                                               255 Me Me Me CN NH.sub.2 179.8-181.9                                           256 Me Me Me Cl NH.sub.2   120-121.5                                           257 Me H H F NHC(O)CH(NH.sub.2)-                                                    CH(Me).sub.2 (S) 130.6-131.5                                              258 Me H Me Cl NH.sub.2                                                        259 Me H CF.sub.3 Cl NH.sub.2   140-140.8                                      260 H Cl H F NH.sub.2 97.9-99                                                  261 H OMe H F NH.sub.2 131.4-132.6                                             262 Me Me Me Cl NH H* = COCH.sub.3 153-155                                   ______________________________________                                    

and are named as follows:

250. 4-[5-(4-Chorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline.

251. 3-Fluoro-4-[5-(4-methylthiobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline.

252. 3-Fluoro-4-[5-(4-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]aniline.

253. 3-Fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]aniline.

254. 3-Fluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]aniline.

255. 3-Cyano-4-[5-(2,4-dimethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline.

256. 3-Chloro-4-[5-(2,4-dimethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline.

257. N-(S)-Valyl-3-fluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]aniline.

258. 3-Chloro-4-[5-(4-methylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline, m/e=352 (M+H).

259. 3-Chloro-4-[5-(4-trifluoromethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline.

260. 3-Fluoro-4-[5-(2-chlorobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]aniline.

261. 3-Fluoro-4-[5-(2-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]aniline.

262. N-{3-Chloro-4-[5-(2,4-dimethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}acetamide.

VIIa. Compounds of formula I where R₁ =R₃ =Me; R₄ =R₅ =R₁₂ =R₁₅ =R₁₆ =H; R₁₄ =Cl; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (V); and R₃₀ =NH*SO₂ R₃₁, are:

    ______________________________________                                         CPD#      R.sub.13 R.sub.22 R.sub.31                                                                              M.Pt. ° C.                           ______________________________________                                         263       H        H        Me     191                                           264 H H Me Na+ >280                                                            265 H H Me HCl 199-200                                                         266 H H CH.sub.2 CH.sub.3 181-182                                              267 H H (CH.sub.2).sub.2 OH 160-161                                            268 Cl H Me 161.7-162.3                                                        269 Cl H CH.sub.2 CH.sub.3 67.8-78.8                                           270 Cl H 2-thienyl 111-114                                                   ______________________________________                                    

and are named as follows:

263. N-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}methanesulfonamide.

264. N-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}methanesulfonamide sodium salt.

265. N-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}methanesulfonamide hydrochloride.

266. N-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}ethanesulfonamide.

267. N-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}2-(hydroxy)ethanesulfonamide.

268. N-{2-[5-(3,4-Dichlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}methanesulfonamide.

269. N-{2-[5-(3,4-Dichlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}ethanesulfonamide.

270. N-{2-[5-(3,4-Dichlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5yl}thiophen-2-ylsulfonamide.

VIIb. Compounds of formula I where R₁ =Me; R₅ =R₁₃ =R₁₅ =R₁₆ =H; R₁₄ =Me; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (V); and R₃₀ =NH*SO₂ R₃₁, are:

    ______________________________________                                         CPD#    R.sub.3                                                                              R.sub.4                                                                              R.sub.12                                                                            R.sub.22                                                                            R.sub.31  M.Pt. ° C.                      ______________________________________                                         271     H     H     H    H    Me        158.7-159.5                              272 H H H H (CH.sub.2).sub.2 OH .HCl 129                                       273 Me H H H Me 179-180                                                        274 Me H H H CH.sub.2 CH.sub.3 56                                              275 Me H H H CH(CH.sub.3).sub.2 73                                             276 H H H 3-Cl Me 188.2-190                                                    277 H H Me H Me .HCl   81-83.5                                                 278 H Cl H H Me 142.5-142.9                                                  ______________________________________                                    

and are named as follows:

271. N-{2-[5-(4-Methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}methanesulfonamide.

272. N-{2-[5-(4-Methylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-2-(hydroxy)ethanesulfonamide hydrochloride.

273. N-{2-[5-(4-Methylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}methanesulfonamide.

274. N-{2-[5-(4-Methylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}ethanesulfonamide.

275. N-{2-[5-(4-Methylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-(2-propane)sulfonamide.

276. N-{3-Chloro-2-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}methanesulfonamide.

277. N-{2-[5-(2,4-Dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5yl}methanesulfonamide hydrochloride salt.

278. N-{2-[5-(4-Methylbenzoyl)-1-methyl-4-chloro-1H-pyrrol-2-ylmethyl]pyridin-5-yl}methanesulfonamide.

VIIc. Compounds of formula I where R₁ =Me; R₄ =R₅ =R₁₂ =R₁₃ =R₁₅ =R₁₆ =H; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (V); and R₃₀ =NH*SO₂ R₃₁, are:

    ______________________________________                                         CPD#    R.sub.3                                                                               R.sub.14                                                                               R.sub.22                                                                             R.sub.31 M.Pt. ° C.                        ______________________________________                                         279     Me     H       H     Me .HCl  204-206                                    280 Me H H CH.sub.2 CH.sub.3 117-118                                           281 Me H H (CH.sub.2).sub.2 OH.HCl 151.5-153                                   282 Me SMe H CH.sub.2 CH.sub.3 210-215                                         283 Me SMe H Me 175                                                            284 Me OMe 3-Cl Me 178-180                                                     285 Me OMe H CH.sub.2 CH.sub.3 53.8-64.7                                       286 Me F H CH.sub.2 CH.sub.3 145.5-146.2                                       287 Me F H Me 166.1-167.2                                                      288 H OMe H Me 141-142                                                         289 Me OMe H Me 149.4-150.2                                                  ______________________________________                                    

and are named as:

279. N-{2-[5-Benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}methanesulfonamide hydrochloride.

280. N-{2-[5-Benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}ethanesulfonamide.

281. N-{2-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-2-(hydroxy)ethanesulfonamide.

282. N-{2-[5-(4-Methylthiobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}ethanesulfonamide.

283. N-{2-[5-(4-Methylthiobenzoyl)-1,4-dimethyl- 1H-pyrrol-2-ylmethyl]pyridin-5-yl}methanesulfonamide.

284. N-{3-Chloro-2-[5-(4-methoxybenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}methanesulfonamide.

285. N-{2-[5-(4-Methoxybenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}ethanesulfonamide.

286. N-{2-[5-(4-Fluorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}ethanesulfonamide.

287. N-{2-[5-(4-Fluorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}methanesulfonamide.

288. N-{2-[5-(4-Methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}methanesulfonamide.

289. N-{2-[5-(4-Methoxybenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}methanesulfonamide

VIII. Compounds of formula I where R₁ =Me; R₄ =R₅ =R₁₃ =R₁₅ =R₁₆ =H; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (V); and R₃₀ =NH*SO₂ NR₃₂ R₃₄, are:

    ______________________________________                                         CPD#   R.sub.12                                                                              R.sub.14                                                                              R.sub.3                                                                            R.sub.22                                                                            R.sub.32                                                                            R.sub.34                                                                              M.Pt. ° C.                    ______________________________________                                         290    H      Cl     Me  H    Me   Me       154-155.9                            291 H Cl Me H H H 170-171                                                      292 H Me H H Me Me   135-136.5                                                 293 H Me H H H H 168.8-169.1                                                   294 H H Me H Me Me   146-146.6                                                 295 H H Me H H H 162-163                                                       296 H SMe Me H Me Me 154.9-159.5                                               297 H OMe Me 3-Cl H H 179.8-180.2                                              298 H Cl Me H H Me 175.5-176.1                                                 299 H Cl Me H H CH.sub.2 CH.sub.3 167.3-168.1                                  300 H Me H H H CH.sub.2 CH.sub.3   162-163.7                                   301 H SMe Me H H H 175.3-175.7                                                 302 H F Me H Me Me 117.3-117.8                                                 303 H Me H H H Me 60.3-61.3                                                    304 H F Me H H Me   137-142.2                                                  305 H F Me H H CH.sub.2 CH.sub.3   163-163.5                                   306 H OMe H H H H 179.8-180.2                                                  307 Me Me H H H Me 124-130                                                   ______________________________________                                    

and are named as follows:

290. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5yl}-3,3-dimethylsulfamide.

291. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}sulfamide.

292. 1-{2-[5-(4-Methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3,3-dimethylsulfamide.

293. 1-{2-[5-(4-Methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}sulfamide.

294. 1-{2-[5-Benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3,3-dimethylsulfamide.

295. 1-{2-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}sulfamide.

296. 1-{2-[5-(4-Methylthiobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3,3-dimethylsulfamide.

297. 1-{3-Chloro-2-[5-(4-methoxybenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3,3-dimethylsulfamide.

298. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-methylsulfamide.

299. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-ethylsulfamide.

300. 1-{2-[5-(4-Chlorobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-ethylsulfamide.

301. 1-{2-[5-(4-Methylthiobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}sulfamide.

302. 1-{2-[5-(4-Fluorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3,3-dimethylsulfamide.

303. 1-{2-[5-(4-Methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-methylsulfamide.

304. 1-{2-[5-(4-Fluorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-methylsulfamide.

305. 1-{2-[5-(4-Fluorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-ethylsulfamide.

306. 1-{2-[5-(4-Methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}sulfamide.

307. 1-{2-[5-(2,4-Dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-methylsulfamide.

IX. Compounds of formula I where R₁ =R₃ =Me; R₄ =R₅ =R₁₂ =R₁₃ =R₁₅ =R₁₆ =R₂₂ =H; R₁₄ =Cl; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (V); and R₃₀ =NH*C(O)NR₃₂ R₃₃, are:

    ______________________________________                                         CPD#        R.sub.32 R.sub.33  M.Pt. ° C.                               ______________________________________                                         308         Me       Me        227-230                                           309 H Me   234-235.5                                                           310 H (CH.sub.2).sub.2 Cl 181.8-182.9                                          311 H phenyl 194.5-195.2                                                       312 H 3-Cl-phenyl 167.5-168.2                                                  313 H 2-Cl-phenyl 186-188                                                    ______________________________________                                    

and are named as follows:

308. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3,3-dimethylurea.

309. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-methylurea.

310. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-(2-chloroethyl)urea.

311. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-phenylurea.

312. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-(3-chlorophenyl)urea.

313. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-(2-chlorophenyl)urea.

X. Compounds of formula I where R₁ =Me; R₄ =R₅ =R₁₂ =R₁₃ =R₁₅ =R₁₆ =R₂₂ =H; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (V); and R₃₀ =NH*C(S)NR₃₂ R₃₃, are:

    ______________________________________                                         CPD#  R.sub.3                                                                              R.sub.14                                                                              R.sub.22                                                                            R.sub.32                                                                            R.sub.33   M.Pt. ° C.                      ______________________________________                                         314   Me    Cl     H    H    CH.sub.2 CH.sub.3                                                                         139-142                                  315 Me Cl H H Me 135                                                           316 Me Cl H H phenyl 154.2-155.5                                               317 Me Cl H H cyclohexyl 146-150                                               318 Me Cl H H (CH.sub.2).sub.2 OMe 136.1-137.9                                 319 Me Cl H H tetrahydro- 130.6-133.1                                               furan-2-ylmethyl                                                          320 Me Cl H H CH.sub.2 CO.sub.2 Me   155-156.5                                 321 Me Cl H H cyclopropyl   110-122.5                                          322 Me Cl H H (CH.sub.2).sub.2 -morpholine 84-98                               323 Me Cl H H phenyl HCl.Salt 172-174                                          324 Me Cl H H 4-Cl-phenyl 157.8-158.5                                          325 Me Cl H H 3-Cl-phenyl 157.5-159                                            326 Me Cl H H 4-SMe-phenyl 149-150                                             327 H Me Cl H (CH.sub.2).sub.2 OMe 172.4-174.2                                 328 H Me Cl H tetrahydro- 150.1-150.8                                               furan-2-ylmethyl                                                        ______________________________________                                    

and are named as follows:

314. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-ethyl-2-thiourea.

315. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-methyl-2-thiourea.

316. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-phenyl-2-thiourea.

317. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-cyclohexyl-2-thiourea.

318. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-(2-methoxyethyl)-2-thiourea.

319. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-(tetrahydrofuran-2-ylmethyl)-2-thiourea.

320. 1-{2-[5-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-[(methoxycarbonyl)methyl]-2-thiourea.

321. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-cyclopropyl-2-thiourea.

322. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-[2-(morpholin-4-yl)ethyl]-2-thiourea.

323. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-phenyl-2-thiourea hydrochloride.

324. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-(4-chlorophenyl)-2-thiourea.

325. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-(3-chlorophenyl)-2-thiourea.

326. 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-(4-methylthiophenyl)-2-thiourea.

327. 1-{3-Chloro-2-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-(2-methoxyethyl)-2-thiourea.

328. 1-{3-Chloro-2-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-(tetrahydrofuran-2-ylmethyl)-2-thiourea.

XI. Compounds of formula I where R₁ =R₃ =Me; R₄ =R₅ =R₁₂ =R₁₃ =R₁₅ =R₁₆ =R₂₂ =H; R₁₄ =Cl; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (V); and R₃₀ =NH*C(O)R₃₁, are:

    ______________________________________                                         CPD#        R.sub.31     M.Pt. ° C.                                     ______________________________________                                         329         Me           194-195                                                 330 H 166.6-167.7                                                              331 CH(NH.sub.2)CH.sub.3 .2HCl 129-210 chiral (R)                              332 morpholino 243-244                                                       ______________________________________                                    

and are named as follows:

329. N-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}acetamide.

330. N-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}formamide.

331. (R)-N-{2-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}alaninamide.

332. N-{2-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]-pyridin-5-yl}morpholin-4-ylcarboxamide.

XII. Compounds of formula I where R₁ =Me; R₄ =R₅ =R₁₃ =R₁₅ =R₁₆ =R₂₂ =H; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (V); and R₃₀ =NHH* are:

    ______________________________________                                         CPD#       R.sub.3 R.sub.12 R.sub.14                                                                            M.Pt. ° C.                             ______________________________________                                         333        Me      H        Cl   133.1-133.6                                     334 Me H SMe 152.6-153.7                                                       335 H Me Me 238.9-240.2                                                      ______________________________________                                    

and are named as:

333. {2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}amine.

334. {2-[5-(4-Methylthiobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}amine.

335. {2-[5-(2,4-Dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}amine.

Miscellaneous compounds:

I. Compounds of formula I where R₁ =R₃ =Me; R₄ =R₅ =R₁₃ =R₂₂ =H; R₂₀ =is a group represented by formula (V); and R₂₄ =R₃₀ =NHSO₂ R₃₁ are:

    ______________________________________                                         CPD#      R.sub.10   R.sub.31   M.Pt. ° C.                              ______________________________________                                         336       2-thienyl  CH.sub.2 CH.sub.3 .HCl                                                                    166-167                                          337 2-thienyl Me .HCl   168-170.5                                            ______________________________________                                    

and are named as follows:

336. N-{2-[5-Thenoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}ethanesulfonamide hydrochloride.

337. N-{2-[5-Thenoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}methanesulfonamide hydrochloride.

II. Compound of formula (I) where R₁ =Me; R₃ =R₄ =R₁₂ =R₁₃ =R₁₅ =R₁₆ =R₂₄ =R₂₅ =R₂₆ =H; R₁₄ =Me; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (U); and R₂₃ =R₃₀ =NH*SO₂ R₃₁, is:

    ______________________________________                                         CPD#       R.sub.5                                                                              R.sub.22    R.sub.31                                          ______________________________________                                         338        H     H           Me     Foam                                       ______________________________________                                    

and is named as follows:

338. N-{3-[5-(4-Methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

III. Compounds of formula I where R₁ =Me; R₄ =R₅ =R₁₃ =R₂₃ =R₂₅ =R₂₆ =H; R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ =NH*SO₂ R₃₁, are:

    ______________________________________                                         CPD#     R.sub.10  R.sub.3                                                                               R.sub.22                                                                             R.sub.31                                                                            M.Pt. ° C.                         ______________________________________                                         339      2-thienyl H      H     Me   142-143                                     340 2-thienyl Me F Me 169-170                                                  341 3-pyridyl Me H Me 130-132                                                ______________________________________                                    

and are named as follows:

339. N-{4-[5-(2-thenoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

340. N-{3-Fluoro-4-[5-(2-thenoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

341. N-{4-[5-(2-Nicotinyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

IV. Compounds of formula (I) where R₁ =Me; R₄ =R₅ =R₁₃ =R₂₃ =R₂₅ =R₂₆ =H; R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ =NH*SO₂ NR₃₂ R₃₄, is:

    ______________________________________                                         CPD#   R.sub.10 R.sub.3                                                                               R.sub.22                                                                            R.sub.32                                                                             R.sub.34                                                                            M.Pt. ° C.                       ______________________________________                                         342    2-thienyl                                                                               Me     F    H     H    204-205                                 ______________________________________                                    

and is named as follows:

342. 1-{3-Fluoro-4-[5-(2-thenoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

V. Compounds of formula I where R₄ =R₅ =R₁₂ =R₁₃ =R₁₅ =R₁₆ =R₂₂ =R₂₃ =R₂₅ =R₂₆ =H; R₁₀ =is a group represented by formula (A); R₂₀ =is a group represented by formula (U); and R₂₄ =R₃₀ are:

    ______________________________________                                         CPD#     R.sub.1                                                                               R.sub.3                                                                               R.sub.14                                                                             R.sub.30                                                                               M.Pt                                      ______________________________________                                         343      Me     Me     Cl    OH                                                  344 Me Me Cl OSO.sub.2 NMe.sub.2                                               345 H H SMe NHSO.sub.2 Me 188.7-189                                          ______________________________________                                    

and are named as follows:

343. 4-{5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl}phenol, m/e=340 (M+).

344. 1-N,N-dimethylaminosulfonyloxy-4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]benzene, m/e=446 (M+).

345. N-{4-[5-(4-Methylthiobenzoyl)-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

Preferred Compounds

Preferred compounds of this invention are those where:

(1) R₁, R₃, R₄, and R₅ are independently H or alkyl; more preferably H or Me; most preferably R₁ is Me; R₃ is H or Me; and R₄ and R₅ are H;

(2) R₁₀ is a group represented by formula (A);

(3) R₁₂ and R₁₆ are independently H, alkyl, hydroxy, alkyloxy, cyano, or halo; more preferably H, Me, OH, OMe, F, or Cl; most preferably H, Me, or OMe;

(4) R₁₃ is H or alkyl; more preferably H or Me; most preferably H;

(5) R₁₄ is H, halo, alkyl, dialkylamino, alkoxy, alkylthio, or cyano; more preferably H, Me, OMe, F, Cl, NMe₂, or SMe; most preferably H, F, Cl, Me, or OMe;

(6) R₁₅ is H or halo; more preferably H or Cl; most preferably H;

(7) R₂₀ is a group represented by formula (U) or (V); preferably (U);

(8) where R₂₀ is a group represented by formula (U):

R₂₂ is H, halo, alkyl, cyano, or --CF₃ ; more preferably H, F, Cl, or CN; most preferably F, Cl, or CN;

R₂₃ and R₂₅ are H;

R₂₄ is R₃₀ ; and

R₂₆ is H, alkyl, or halo; more preferably H, Me, F, or Cl; most preferably H or F;

(9) where R₂₀ is a group represented by the formula (V):

R₂₂ is preferably meta to R₃₀ and is preferably H, F, Cl, or cyano; more preferably H, F, or Cl; most preferably H;

(10) R₃₀ is --NHH*, --NH*C(S)R₃₂ R₃₃, --NH*SO₂ R₃₁, or --NH*SO₂ NR₃₂ R₃₄ ; more preferably --NHH*, --NH*SO₂ R₃₁, or --NH*SO₂ NR₃₂ R₃₄ ; most preferably --NH*SO₂ R₃₁ or --NH*SO₂ NR₃₂ R₃₄

(11) R₃₁ is alkyl, 2-hydroxyethyl, 2,3-dihydroxypropyl, or --(CH₂)_(n) R₃₅ where n is 2 or 3 and R₃₅ is OMe, cycloamino, --NMe₂, or --CO₂ R₂₇ where R₂₇ is alkyl; more preferably Me or 2-hydroxyethyl;

(12) R₃₂ is H or Me; more preferably H;

(13) R₃₄ is H, Me, 2-hydroxyethyl, or acetyl; more preferably H or Me; most preferably H; and pharmaceutically acceptable salts thereof.

A number of different substituent preferences have been given in the list above, and following any of these substituent preferences results in a compound of this invention that is more preferred than one in which the particular substituent preference is not followed. However, these substituent preferences are generally independent, although some preferences are mutually exclusive, and following more than one of the substituent preferences results in a more preferred compound than one in which fewer of the substituent preferences are followed. Thus, particularly preferred compounds of this invention are those in which (to the extent possible) most of the above preferences are followed.

Exemplary particularly preferred compounds are:

N-{3-Cyano-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

N-{3-Fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

N-{3-Fluoro-4-[5-(2,4-dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

N-{3-Fluoro-4-[5-(2-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide.

N-{3-Fluoro-4-[5-(4-methoxybenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

1-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

1-{3-Fluoro-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

1-{3-Cyano-4-[5-(4-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

1-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-methyl-2-thiourea

N-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-methanesulfonamide.

N-{3-Chloro-2-[-5-(4-methoxybenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}methanesulfonamide.

1-{2-[-5-(4-Methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}sulfamide.

{2-[5-(4-Thiomethylbenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}amine.

4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenol.

N-{2-[5-(4-Methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-methanesulfonamide.

1-{3-Fluoro-4-[5-(2,4-dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]-phenyl}-sulfamide.

N-{2-[5-(4-Methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-methanesulfonamide.

N-{3,5-Difluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)-ethanesulfonamide.

N-{3-Fluoro-4-[5-(2-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

N-{3-Fluoro-4-[5-(2-methyl-4-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]-phenyl}-2-(hydroxy)ethanesulfonamide.

N-{3-Fluoro-4-[5-(2-chloro-4-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

N-{3-Fluoro-4-[5-(2-methoxy-4-methyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

N-{3-fluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)-ethanesulfonamide.

General Synthetic Scheme

Compounds of this invention can be made by the methods depicted in the reaction schemes shown below.

The starting materials and reagents used in preparing these compounds are either available from commercial suppliers such as Aldrich Chemical Co., or are prepared by methods known to those skilled in the art following procedures set forth in references such as Fieser and Fieser's Reagents for Organic Synthesis, Volumes 1-15 (John Wiley and Sons, 1991); Rodd's Chemistry of Carbon Compounds, Volumes 1-5 and Supplementals (Elsevier Science Publishers, 1989); and Organic Reactions, Volumes 1-40 (John Wiley and Sons, 1991). These schemes are merely illustrative of some methods by which the compounds of this invention can be synthesized, and various modifications to these schemes can be made and will be suggested to one skilled in the art having referred to this disclosure.

The starting materials and the intermediates of the reaction may be isolated and purified if desired using conventional techniques, including but not limited to filtration, distillation, crystallization, chromatography and the like. Such materials may be characterized using conventional means, including physical constants and spectral data.

Unless specified to the contrary, the reactions described herein take place at atmospheric pressure over a temperature range from about -78° C. to about 150° C., more preferably from about 0° C. to about 125° C. and most preferably at about room (or ambient) temperature, e.g., about 20° C.

In general, compounds of formula I are prepared by modification of 5-aroylpyrrol-2-ylmethylanilines ("anilines") or 5-aroylpyrrol-2-ylmethylpyridinamines ("pyridinamines"). These anilines or pyridinamines, which will sometimes be referred to later as compounds of formula Ia, are compounds of formula I where R₃₀ is --NH₂ ; so they are both compounds of this invention and are also intermediates to further compounds of this invention.

For convenience in the synthetic schemes following, R₂₀ (with the exception of the R₃₀ substituent thereon), will be denoted by --Q--. The use of --Q--R₃₀ to denote R₂₀ does not imply that R₂₀ is substituted only with R₃₀ ; R₂₀ may contain any other substituents within the scope described in the Summary of the Invention (or as specifically limited in a particular reaction sequence).

Schemes A, B, C and D describe alternative methods to generate the compounds of formula Ia. ##STR9##

In Step 1, a 5-aroylpyrrole-2-acetate 3 is prepared by acylating a pyrrole-2-acetate 2, where R₁ is not hydrogen and Z is alkyl (particularly Me or ethyl) with an acylating agent of formula 1, where R₁₀ is as defined in the Summary of the Invention (except that R₁₄ is not an amino or alkylamino group) and L is a leaving group under acylating conditions [such as halo (particularly Cl), dialkylamino (particularly --NMe₂), or cycloamino (particularly morpholino)]. Suitable solvents for the reaction are halogenated and aromatic hydrocarbons (e.g. dichloroethane, xylenes and the like). When L is halo, the reaction proceeds on heating; when L is dialkylamino or cycloamino, the reaction proceeds in the presence of an acid halide such as phosphorus oxychloride, thionyl chloride, phosgene, oxalyl chloride, and the like (a Vilsmeier-Haack reaction).

In general, the compounds of formula 1, the pyrrole-2-acetates 2 and the 5-aroylpyrrole-2-acetates 3 are known to or can readily be synthesized by those of ordinary skill in the art. For example, synthesis of a pyrrole-2-acetate 2, where R₁ and R₃ are methyl is described by Stahley G. P., Marlett E. M., and Nelson G. E., J. Org. Chem.; 48:4423 (1983) and where R₁ is hydrogen and R₅ is H or alkyl is described by Schloemer, G. C., et. al., J. Org. Chem.; 59, 5230 (1994).

Also, a pyrrole-2-acetate 2 where R₅ is alkyl, can be prepared by reacting a pyrrole-2-acetate 2 where R₅ is hydrogen, with an alkylating agent R₅ L where L is a leaving group under alkylating conditions, such as halo, methanesulfonate, p-toluenesulfonate and the like. The reaction is carried out in the presence of a base (e.g., cesium carbonate, sodium hydride, or potassium carbonate) in a suitable polar aprotic organic solvent such as ether, THF, dioxane, DMF and the like. However, it is preferable to introduce R₅ as the alkyl group, in Step (2) of the synthesis as described below.

The 5-aroylpyrrole-2-acetates 3, where R₁ is alkyl and R₃ is methylthio or where R₁ and R₅ together form --(CH₂)₂ --, and their synthesis are described in Muchowski, J. M.; Galeazzi, E., et al., J. Med. Chem. 32, 1202-1207, (1989).

Certain 5-aroylpyrrole-2-acetates 3 are also commercially available. For example the sodium salts of zomepirac, 5-(4-chlorobenzoyl)-1,4-dimethylpyrrole-2-acetate and tolmetin, 5-(4-methylbenzoyl)-1-methylpyrrole-2-acetate are available from Sigma Chemical Company.

If a compound of formula 3 is obtained as an acid or salt, it is converted to an alkyl (preferably Me or ethyl) or an allyl ester prior to Step 2. The allyl ester is preferred when --Q-- in compound 5 contains an electron withdrawing group such as a halo group meta to the nitro group or a base sensitive group such as a cyano group as one of the substituents. The alkyl or allyl ester is prepared by reacting the alkali metal salt of compound 3 with an alkylating agent such as an alkyl (preferably Me or ethyl) or allyl halide (e.g., Cl or Br). Suitable solvents for the reaction are polar aprotic organic solvents. If compound 3 is obtained as an alkyl ester (e.g., Z=Me or ethyl) but the allyl ester is preferred, the alkyl ester is converted to the corresponding allyl ester by heating it in an excess of allyl alcohol, in the presence of a suitable basic catalyst such as titanium isopropoxide.

In Step 2, a 2-(5-aroylpyrrol-2-yl)-2-(nitrophenyl/nitropyridyl)acetate 5 is prepared by nucleophilic substitution of X" in a nitro compound of formula 4, where X" is a leaving group under arylation conditions (e.g., Cl, F, --OSO₂ Me, --OSO₂ CF₃, and the like) by a 5-aroylpyrrole-2-acetate 3. The reaction is carried out in the presence of a strong base (e.g., sodium or potassium hydride, lithium diisopropylamide and the like) under an inert atmosphere (e.g., argon or nitrogen). Suitable solvents are aprotic organic solvents (e.g., tetrahydrofuran, dimethylformamide, and the like). Additionally, a compound of formula 5 where R₅ is alkyl, can be prepared from a compound of formula 3 where R₅ is hydrogen, by carrying out the above arylation procedure in the presence of an alkylating agent R₅ L, where L is a leaving group under alkylating condition

Compounds of formula 4 are commercially available or can be synthesized by one of ordinary skill in the art.

In Step 3, a nitrobenzene/nitropyridine 6 is prepared by hydrolysis and decarboxylation of the ester group in a compound of formula 5. If compound 5 is the alkyl ester, the hydrolysis/decarboxylation proceeds on heating, in the presence of an aqueous solution of a suitable base (e.g., LiOH, NaOH and the like) and in a suitable organic solvent such as methanol, methoxyethanol, DMF, THF, or mixtures thereof (preferably a high boiling solvent such as methoxyethanol or DMF). If the decarboxylation does not occur during the hydrolysis, it is effected by acidifying the reaction mixture with an aqueous acid such as HCl to give the free acid, which undergoes decarboxylation either at ambient temperature or upon heating in a high boiling organic solvent.

If compound 5 is the allyl ester, the deprotection reaction proceeds at ambient temperature, in the presence of a palladium catalyst (e.g., tetrakis(triphenylphosphine) palladium), an allyl scavenger (e.g., morpholine or pyrrolidine) and under an inert atmosphere. Suitable solvents for the reaction are polar organic solvents (e.g., THF, dioxane, or DMF).

In Step 4, an aniline/pyridinamine of formula Ia is prepared by reducing the nitro group of nitrobenzene/nitropyridine 6 to an amino group. Suitable nitro group reducing conditions include iron metal with ammonium chloride in ethanol/water, nickel boride in acidic methanol or catalytic hydrogenation using a platinum or palladium catalyst (e.g., PtO₂ or Pd/C) in an alcoholic solvent (e.g., methanol or ethanol, preferably ethanol).

Alternatively, a compound of formula Ia can be prepared from an alkyl ester of compound 5 by carrying out the reduction of the nitro group to the amino group, followed by the hydrolysis and decarboxylation of the ester group in the resulting aniline/pyridinamine-acetate of formula 7, utilizing the reaction conditions described in Steps 4 and 3 above. In general, this alternative route for the synthesis of compounds of formula Ia is preferred over the hydrolysis/decarboxylation, followed by reduction sequence described in steps 3 and 4 above when 5 is the alkyl ester.

The synthesis of a (5-aroylpyrrol-2-ylmethyl)aniline and a [2-(5-aroylpyrrol-2-ylmethyl)-pyridin-5-yl}amine utilizing the reaction conditions described in Scheme A is given in Examples 1-6. ##STR10##

The aniline/pyridinamine of formula Ia can also be prepared from a pyrrole-2-acetate 2 by the method shown in Scheme B.

In Step 1, a 2-pyrrole-2-(nitrophenyl/nitropyridyl)acetate 8 is prepared by proceeding as in Step 2 of Scheme A but substituting a pyrrole-2-acetate 2 for a 5-aroylpyrrole-2-acetate 3.

In Step 2, a (pyrrol-2-ylmethyl)nitrobenzene/nitropyridine 9 is prepared by proceeding as in Step 3 of Scheme A but substituting a compound of formula 8 for a compound of formula 5.

In Step 3, a 2-(5-aroylpyrrol-2-ylmethyl)nitrobenzene/nitropyridine 6 is prepared from the compound of formula 9 by 5-acylation, utilizing the reaction conditions described in Step 1 of Scheme A.

In Step 4, an aniline/pyridinamine Ia is prepared by reduction of the nitro group in compound 6, utilizing the reaction conditions described in Step 4 of Scheme A.

Although Scheme B is generally suitable for synthesis of compounds of formula I that are within the scope of this invention, it is particularly suitable for the preparation of compounds of formula I where R₁₄ is an amino or alkylamino group. A detailed description of the synthesis of a compound of formula Ia by this method is given in Example 7. ##STR11##

In Step 1, a 2-(nitroaroyl)pyrrole 12 is prepared by proceeding as in Step 1 of Scheme A but substituting an acylating agent of formula 10 and a pyrrole of formula 11 for the compounds of formula 1 and 2 respectively.

In Step 2, a (pyrrol-2-ylmethyl)nitrobenzene/nitropyridine 13 is prepared by reduction of the ketone group in compound 12 with a reducing agent selective for the ketone group, such as sodium cyanoborohydride in presence of a catalyst such as zinc iodide. Suitable solvents for this reaction include dihalogenated solvents (e.g., dichloromethane or dichloroethane).

A compound of formula Ia is then prepared from the compound of formula 13 by 5-acylation, followed by nitro group reduction in steps (3) and (4), utilizing the reaction conditions described in Steps 1 and 4 of Scheme A.

This route is particularly suited for preparing compounds of formula I where R₂₀ is a group represented by the formula (U) in which R₂₃ or R₂₅ is R₃₀. A detailed description of the synthesis of a compound of formula Ia by this method is given in Example 8. ##STR12##

In Step 1, a 2-(5-aroylpyrrol-2-yl)-2-(cyanophenyl/cyanopyridyl)acetate 16 is prepared by proceeding as in Step 2 of Scheme A but substituting a nitrile of formula 15 for a nitro compound of formula 4.

In Step 2, a (5-aroylpyrrol-2-ylmethyl)benzoic/nicotinic acid 17 is prepared by proceeding as in Step 3 of Scheme A but substituting the compound of formula 16 for a compound of formula 5. The hydrolysis/decarboxylation reaction condition also causes the hydrolysis of the nitrile group.

In step 3, a compound of formula Ia is then prepared from a compound of formula 17, using a Curtius rearrangement reaction. Suitable conditions are those described in Yamada F., et al.; J. Am. Chem. Soc.; 6203, (1974) and Yamada, F., et al.; Tetrahedron, 30, 2151 (1974). The preparation of a compound of formula Ia by this method is described in Example 9.

Schemes E-I describe methods to prepare other compounds of formula I from compounds of formula Ia. ##STR13##

A compound of formula I where R₃₀ is --OH can be prepared by converting an aniline/pyridinamine of formula Ia to a diazonium salt, which upon hydrolysis in an aqueous acid gives the hydroxy group. The diazonium salt is prepared by reacting a compound of formula Ia with a nitrite salt (e.g., NaNO₂, KNO₂ and the like) in an aqueous solvent (e.g., water, aqueous acetic acid, aqueous organic mixtures such as acetic acid/acetone) or an alkyl nitrite such as isoamylnitrite in a non-aqueous solvent such as glacial acetic acid, acetone or a mixture thereof. The conversion of a compound of formula Ia to a compound of formula I where R₂₄ =R₃₀ is --OH is described in detail in Example 10. ##STR14##

A compound of formula I where R₃₀ is an amide group can be prepared, either:

(a) by reacting an aniline/pyridinamine of formula Ia with an acylating reagent R₃₁ COL, where L is a leaving group under acylating conditions, such as a halo (particularly Cl or Br) or imidazolide. Suitable solvents for the reaction include aprotic polar solvents (e.g., dichloromethane, THF, dioxane and the like.) When an acyl halide is used as the acylating agent the reaction is carried out in the presence of a non-nucleophilic organic base (e.g., triethylamine or pyridine, preferably pyridine); or

(b) by heating a compound of formula Ia with an acid anhydride. Suitable solvents for the reaction are THF, dioxane and the like. Detailed descriptions of the conversion of a compound of formula Ia to compounds of Formula I where R₃₁ is --NHC(O)CH₃ or --NHCHO are given in Examples 11 and 12. ##STR15##

A compound of formula I where R₃₀ is a urea/thiourea group can be prepared, either:

(a) by reacting an aniline/pyridinamine of formula Ia with an activating agent such as carbonyl diimidazole/thiocarbonyl diimidazole, followed by nucleophilic displacement of the imidazole group with a primary or secondary amine. The reaction occurs at ambient temperature. Suitable solvents include polar organic solvents (e.g., THF, dioxane and the like);

(b) by reacting a compound of formula Ia with a carbamoyl/thiocarbamoyl halide. The reaction is carried out in the presence of a non-nucleophilic organic base. Suitable solvents for the reaction are dichloromethane, 1,2-dichloroethane, THF, or pyridine; or

(c) by reacting a compound of formula Ia with an isocyanate/isothiocyanate in an aprotic organic solvent (e.g., benzene, THF, DMF and the like). Detailed descriptions of the conversion of a compound of formula Ia to compounds of formula I where R₃₀ is --NHC(O)NHCH₂ CH₂ OH, --NHC(O)NMe₂, --NHC(O)NHMe, or --NHC(S)NHMe are given in Examples 13-16. ##STR16##

A compound of formula I where R₃₀ is a sulfonamide group can be prepared, either:

(a) by reacting an aniline/pyridinamine of formula Ia with a sulfonyl halide, utilizing the reaction conditions described in method (b) of Scheme G. Sulfonyl halides are commercially available or may be prepared by methods such as those described in (1) Langer, R. F.; Can. J. Chem.; 61, 1583-1592, (1983); (2) Aveta, R.; et. al.; Gazetta Chimica Italiana, 116, 649-652, (1986); (3) King, J. F. and Hillhouse, J. H.; Can. J. Chem.; 54, 498, (1976); and (4) Szymonifka, M. J. ane Heck, J. V.; Tet. Lett.; 30, 2869-2872, (1989). Detailed descriptions of the conversion of a compound of formula Ia to compounds of formula I where R₃₀ is --NHSO₂ Me, --NHSO₂ (CH₂)₂ OH, --NHSO₂ CH=CH₂, or --NHSO₂ (CH₂)₂ NMe₂ are given in Examples 17-20.

(b) by reacting a compound of formula 9 with two equivalents of a sulfonyl halide in the presence of a non-nucleophilic organic base to give a bis-sulfonamide. Suitable solvents for the reaction are halogenated organic solvents (e.g., dichloromethane, dichloroethane, CCl₄ and the like). The resulting bis-sulfonamide is 5-acylated under the reaction conditions described in Step 1 of Scheme A. Hydrolysis of one of the sulfonyl groups in presence of an inorganic base (e.g., LiOH, KOH and the like) gives a compound of formula I. Suitable solvents for the hydrolysis include THF, dioxane, DMF, and the like. A detailed description of the conversion of a compound of formula Ia to a compound of formula I, where R₃₀ is --NHSO₂ Me by this procedure is given in Example 21. ##STR17##

A compound of formula I where R₃₀ is a sulfamide group can be prepared, either:

(a) by reacting an aniline/pyridinamine of formula Ia with a sulfamoyl halide, utilizing the reaction conditions described in method (b) of Scheme G. Sulfamoyl halides are commercially available or may be prepared by methods such as those described in Graf, R; German Patent, 931225 (1952) and Catt, J. D. and Matler, W. L.; J. Org. Chem., 39, 566-568, (1974); or

(b) by an amine exchange reaction, in which a dimethyl sulfamide (prepared according to the method described above) is heated with an amine NHR₃₂ R₃₄ in an aromatic hydrocarbon in presence of an excess amount of a non-nucleophilic organic base. Detailed descriptions of the conversion of a compound of formula Ia to a compound of formula I where R₃₀ is --NHSO₂ NMe₂, --NHSO₂ NH₂, or --NHSO₂ -morpholine are given in Examples 22-24.

Additional Processes

Compounds of formula I and Ia having a group that would be unstable under the reaction conditions utilized in Schemes A-I can be prepared by the modification of another group present on a corresponding compound of formula I and Ia, e.g.; compounds of formula I containing a hydroxy group may be prepared by de-alkylation/benzylation of an alkyloxy/benzyloxy substituent; those containing an acid group, by hydrolysis of an ester group; and those containing a cyano, by displacement of a bromine atom on the corresponding compounds of formula I. Similarly, a compound of formula Ia having an alkenyl or alkynyl group can be prepared by reacting a corresponding compound of formula Ia containing a bromine or iodine atom with trimethylsilylacetylene under the Castro-Stephens reaction conditions. A detailed description of the conversion of a benzyloxy group to a hydroxy group; an ester group to an acid and a bromine atom to a cyano group are given in Examples 25-27 respectively. Furthermore, a compound of formula I and Ia can prepared by substitution of a group present on a corresponding compound of formula I and Ia, e.g., a compound of formula Ia where R₁₄ is H, or alkylthio may be conveniently prepared by dehalogenation/substitution of a chlorine atom on a corresponding compound of formula Ia. The conversion of a compound of formula Ia where R₁₄ is chloro to a corresponding compound of formula Ia where R₁₄ is H or methylthio is described in Examples 28 and 29 respectively.

General Utility

The compounds of the invention are inhibitors of prostaglandin G/H Synthase I and II (COX I and COX II), especially COX II, in vitro, and as such are expected to possess both anti-inflammatory and analgesic properties in vivo. See, for example, Goodman and Gilmans's "The Pharmacological Basis of Therapeutics," Ninth Edition, McGraw Hill, New York, 1996, Chapter 27. The compounds, and compositions containing them, are therefore useful as anti-inflammatory and analgesic agents in mammals, especially humans. They find utility in the treatment of inflammation and pain caused by diseases such as arthritis, gout, and autoimmune disorders (such as systemic lupus erythematosus, rheumatoid arthritis, and type I diabetes).

As inhibitors of prostaglandin G/H Synthase, the compounds of this invention are also expected to be useful in the prevention and treatment of cancer, in particular colon cancer. It has been shown that COX-2 gene expression is upregulated in human colorectal cancers and that drugs that inhibit prostaglandin G/H Synthase are effective in animal models of cancer (Eberhart, C. E., et. al.; Gastroenterology, (1994), 107, 1183-1188 and Ara, G., and Teicher, B. A., Prostaglandins, Leukotrienes and Essential Fatty Acids, (1996), 54, 3-16). In addition, there is epidemiological evidence that shows a correlation between use of drugs that inhibit prostaglandin G/H synthase and a reduced risk of developing colorectal cancer, (Heath, C. W. Jr., et. al.; Cancer, (1994), 74, No. 10, 2885-8).

The compounds of this invention are also expected to be useful in the prevention and treatment of Alzheimer's disease. Indomethacin, an inhibitor of prostaglandin G/H synthase, has been shown to inhibit the cognitive decline of Alzheimer's patients, (Rogers, J., et. al., Neurology, (1993), 43, 1609). Also, the use of drugs which inhibit prostaglandin. G/H synthase has been linked epidemiologically with a delayed onset of Alzheimer's disease, (Breitner, J. C. S., et. al., Neurobiology of Aging, (1995), 16, No. 4, 523 and Neurology, (1994), 44, 2073).

Testing

The anti-inflammatory activity of the compounds of this invention may be assayed by measuring the ability of the compound to inhibit COX I and COX II, especially COX II, in vitro, using a radiometric assay, as described in more detail in Example 31. It may also be assayed by in vivo assays such as the Rat Carrageenan Paw, and Rat Air-Pouch assays, as described in more detail in Examples 32 and 33. The analgesic activity of the compounds of this invention may be assayed by in vivo assays such as the Acetic Acid induced Rat Writhing Assay, and the rat arthritis pain model, as described in more detail in Example 34.

Administration and Pharmaceutical Composition

In general, the compounds of this invention will be administered in a therapeutically effective amount by any of the accepted modes of administration for agents that serve similar utilities. The actual amount of the compound of this invention, i.e., the active ingredient, will depend upon numerous factors such as the severity of the disease to be treated, the age and relative health of the subject, the potency of the compound used, the route and form of administration, and other factors.

Therapeutically effective amounts of compounds of formula I may range from approximately 0.1-75 mg per Kilogram body weight of the recipient per day; preferably about 5-20 mg/Kg/day. Thus, for administration to a 70 Kg person, the dosage range would most preferably be about 350 mg to 1.4 g per day.

In general, compounds of this invention will be administered as pharmaceutical compositions by any one of the following routes: oral, systemic (e.g., transdermal, intranasal or by suppository), or parenteral (e.g., intramuscular, intraveneous or subcutaneous) administration. The prefered manner of administration is oral using a convenient daily dosage regimen which can be adjusted according to the degree of affliction. Compositions can take the form of tablets, pills, capsules, semisolids, powders, sustained release formulations, solutions, suspensions, elixirs, aerosols, or any other appropriate compositions and are comprised of, in general, a compound of formula I in combination with at least one pharmaceutically acceptable excipient. Acceptable excipients are non-toxic, aid administration, and do not adversely affect the therapeutic benefit of the compound of formula I. Such excipient may be any solid, liquid, semi-solid or, in the case of an aerosol composition, gaseous excipient that is generally available to one of skill in the art.

Solid pharmaceutical excipients include starch, cellulose, talc, glucose, lactose, sucrose, gelatin, malt, rice, flour, chalk, silica gel, magnesium stearate, sodium stearate, glycerol monostearate, sodium chloride, dried skim milk and the like. Liquid and semisolid excipients may be selected from glycerol, propylene glycol, water, ethanol and various oils, including those of petroleum, animal, vegetable or synthetic origin, e.g., peanut oil, soybean oil, mineral oil, sesame oil, etc. Preferred liquid carriers, particularly for injectable solutions, include water, saline, aqueous dextrose, and glycols.

Compressed gases may be used to disperse a compound of this invention in aerosol form. Inert gases suitable for this purpose are nitrogen, carbon dioxide, etc.

Other suitable pharmaceutical excipients and their formulations are described in Remington's Pharmaceutical Sciences, edited by E. W. Martin (Mack Publishing Company, 18th ed., 1990).

The level of the compound in a formulation can vary within the full range employed by those skilled in the art. Typically, the formulation will contain, on a weight percent (wt %) basis, from about 0.01-99.99 wt % of a compound of formula I based on the total formulation, with the balance being one or more suitable pharmaceutical excipients. Preferably, the compound is present at a level of about 1-80 wt %. Representative pharmaceutical formulations containing a compound of formula I are described in Example 30.

EXAMPLES

The following preparations and examples are given to enable those skilled in the art to more clearly understand and to practice the present invention. They should not be considered as limiting the scope of the invention, but merely as being illustrative and representative thereof.

Example 1 Synthesis of 3-fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline ##STR18##

Ethyl 1,4-dimethylpyrrole-2-acetate (37.0 g, 0.19 mol), benzoyl chloride (54.3 g, 0.38 mol), and triethylamine (52.9 ml, 0.38 mol) were dissolved in xylenes (750 ml), and the reaction mixture was refluxed for 18 h under argon. The reaction mixture was cooled to room temperature and the solvent was removed in vacuo. Purification on a Florisil® column (hexane followed by hexane-ethyl acetate, 4:1) gave ethyl 5-benzoyl-1,4-dimethylpyrrole-2-acetate (30.45 g, 57%) as a solid. ##STR19##

Ethyl 5-benzoyl-1,4-dimethylpyrrole-2-acetate (5.0 g, 17.5 mmol) [prepared as in Example 1, Step (a)], was dissolved in DMF (50 ml) and the solution was cooled in an ice bath to 0° C. under an argon atmosphere. Sodium hydride, 50% /mineral oil, (1.3 g, 27.1 mmol) was added, and after 5 min 3,4-difluoronitrobenzene (3.36 g, 21.1 mmol) was added to the reaction mixture. After 1 h the reaction mixture was poured into 10% HCl/ice and the product was extracted into ethyl acetate. The organic phase was washed with water, dried over sodium sulfate, and evaporated to dryness. Purification on a Florisil® column (hexane-ethyl acetate, 9:1) gave ethyl 2-(5-benzoyl-1,4-dimethylpyrrol-2-yl)-2-(2-fluoro-4-nitrophenyl)acetate (6.22 g, 84%) as a solid. ##STR20##

A mixture of ethyl 2-(5-benzoyl-1,4-dimethylpyrrol-2-yl)-2-(2-fluoro-4-nitrophenyl)-acetate (6.0 g, 14.1 mmol) [prepared as in Example 1, Step (b)], nickel boride (8.0 g, 62.4 mmol), hydrochloric acid (50 ml, 1M) and methanol (150 ml) was heated at reflux for 1 h. The reaction mixture was cooled and filtered through Celite®. After removing the methanol in vacuo, the resulting aqueous mixture was made basic with ammonium hydroxide, and the product was extracted into ethyl acetate. The organic layer was washed with brine and dried over sodium sulfate. Evaporation of the organic layer gave ethyl 2-(5-benzoyl-1,4-dimethyl-pyrrol-2-yl)-2-(2-fluoro-4-aminophenyl)acetate (5.3 g, 95%). ##STR21##

Ethyl 2-(5-benzoyl-1,4-dimethylpyrrol-2-yl)-2-(2-fluoro-4-aminophenyl)acetate (5.3 g, 13.4 mmol) [prepared as in Example 1, Step (c)] and 50% aqueous NaOH (5 ml) were dissolved in a 1:1 mixture of methanol/THF (100 ml), and the reaction mixture was refluxed for 30 min. After removing the solvents in vacuo, the residue was diluted with water and acidified with concentrated HCl. The product was extracted into ethyl acetate, and the organic layer was washed with brine, dried over sodium sulfate, and the solvent was removed under reduced pressure. The residue was re-dissolved in DMF (200 ml) and refluxed for 30 min. The reaction mixture was cooled, poured into water/ice, and the product was extracted into ethyl acetate. The organic layer was washed with water and dried over sodium sulfate. Evaporation of the solvent gave 3-fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline (3.12 g, 69%) as a solid.

Example 2 Synthesis of 4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline ##STR22##

Ethyl 2-(5-benzoyl-1,4-dimethylpyrrol-2-yl)-2-(4-nitrophenyl)acetate (8.2 g, 20.2 mmol) [prepared by proceeding as described in Example 1, Steps (a) and (b)] was dissolved in a 1:1 mixture of methanol/THF (200 ml). An aqueous solution of LiOH (250 ml, 0.4M, 100.9 mmol) was added and the mixture was stirred at 60° C. for 2 h. The organic solvents were evaporated in vacuo, the aqueous residue was acidified with 10% HCl, and the product was extracted into ethyl acetate. The organic phase was washed with water, dried over sodium sulfate, and concentrated under vacuum. Purification on a Florisil® column (hexane-ethyl acetate, 4:1) gave 4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]-nitrobenzene (6.68 g, 99%) as a yellow solid. ##STR23##

To a slurry of 4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]nitrobenzene (3.55 g, 10.6 mmol) [prepared as in Example 2, Step (a)] in methanol (170 ml) and hydrochloric acid (50 ml, 1M) was added nickel boride (3.41 g, 26.6 mmol), and the mixture was stirred at 75° C. for 15 h. The reaction mixture was cooled, basified with ammonium hydroxide and the product was extracted into ethyl acetate. The organic phase was washed with water and dried over sodium sulfate. Evaporation of the solvent gave 4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline (3.11 g, 96%) as a pale yellow solid.

Example 3 Synthesis of 4-{1-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-yl]ethyl}aniline ##STR24##

The methyl ester of zomepirac (6.12 g, 20.0 mmol) and 4-fluoronitrobenzene (2.65 ml, 25.0 mmol) were dissolved in DMF (65 ml) and sodium hydride, 60%/in mineral oil (1.68 g, 42 mmol) was added at room temperature. After 30 min methyl iodide (3.12 ml, 50 mmol) was added to the reaction mixture and the stirring was continued for an additional 15 min. The reaction mixture was poured into a mixture of 1N sodium bisulfate (20 ml) and ice-water and stirred overnight. The resulting solid was filtered and washed with water. Recrystallization from ethyl acetate-hexane gave methyl 2-[5-(4-chlorobenzoyl)-1,4-di-methylpyrrol-2-yl ]-2-(4-nitro-phenyl)-2-methylacetate (7.85 g, 89%) as a solid, mp 180.9-181.7° C.

4-{1-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-yl]ethyl}aniline can be prepared from methyl 2-{5-(4-chlorobenzoyl)-1,4-dimethylpyrrol-2-yl)-2-(4-nitrophenyl)-2-methyl-acetate by proceeding as in Example 1, Steps (c) and (d) or Example 2, Steps (a) and (b).

Example 4 Synthesis of 3-chloro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]aniline ##STR25##

The sodium salt of tolmetin (15.0 g, 47.6 mmol) and allyl bromide (4.3 ml, 49.9 mmol) were dissolved in DMF (50 ml) and the mixture was stirred at room temperature until the esterification was complete (˜30 h). The solvent was removed in vacuo and the residue was partitioned between ether and water. The organic layer was separated, washed with water, 1M sodium hydroxide, and brine, and dried over sodium sulfate. Evaporation gave allyl 5-(4-methylbenzoyl)-1-methylpyrrole-2-acetate (11.97 g, 85%) as a solid. ##STR26##

Allyl 5-(4-methylbenzoyl)-1-methylpyrrole-2-acetate (11.83 g, 39.8 mmol) [prepared as in Example 4, Step (a)] and 3,4-dichloronitrobenzene (7.64 g, 39.8 mmol) were dissolved in dry DMF (50 ml). The reaction mixture was cooled under nitrogen to 0° C. and sodium hydride powder (2.01 g, 83.5 mmol) was added in portions. After stirring at 0° C. for 30 min, the reaction mixture was warmed to room temperature and quenched with 1M HCl. The product was extracted into ether and the organic layer was washed with water and brine and dried over magnesium sulfate. Evaporation gave allyl 2-[(5-(4-methylbenzoyl)-1-methylpyrrol-2-yl]-2-(2-chloro-4-nitrophenyl)-acetate (17.15 g, 98%) as a foam. ##STR27##

Allyl 2-[(5-(4-methylbenzoyl)-1-methylpyrrol-2-yl]-2-(2-chloro-4-nitrophenyl)acetate (17.15 g, 39.2 mmol [prepared as in Example 4, Step (b)] was dissolved in THF (100 ml) under nitrogen. Morpholine (34.2 ml, 391.7 mmol) and Pd(PPh₃)₄ (45 mg, 0.04 mmol) were added and the reaction mixture, which developed a white precipitate, was stirred for 20 min. The solvent was removed in vacuo and the residue was dissolved in ether. The ether layer was separated and washed with 1M sodium bisulfate and brine, and dried over magnesium sulfate. Evaporation gave 3-chloro-4-{5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-yl-methyl}nitro-benzene (14.38 g, 99% ) as a yellow oil. ##STR28##

3-Chloro-4-{5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl}nitrobenzene (14.38 g, 39.0 mmol) [prepared as in Example 4, Step (c)] was dissolved in ethanol (300 ml) and an aqueous solution of ammonium chloride (14.0 g in 150 ml) and iron powder (14.0 g) were added to the solution. The reaction mixture was refluxed for 30 min, then cooled to room temperature and filtered. The filtrate was concentrated, diluted with water, and extracted with ether and methylene chloride. The organic layer were combined, washed with brine and dried over sodium sulfate. Evaporation gave 3-chloro-4-{5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl}aniline (12.09 g, 92%) as a yellow solid.

Example 5 Synthesis of {2-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}amine ##STR29##

A solution of tolmetin methyl ester (30.0 g, 0.11 mol) and 2-chloro-5-nitropyridine (21.9 g, 0.138 mol) in DMF (350 ml) was cooled to 4° C. and sodium hydride powder (5.87 g, 0.23 mol) was added in portions. The reaction was stirred for 1.5 h and then poured into a cold aqueous solution of potassium bisulfate (31.0 g in 1500 ml water). The resulting orange precipitate was filtered, washed with water, dried under vacuum, and then stirred with ethyl acetate (500 ml). Filtration gave methyl 2-[(5-(4-methylbenzoyl)-1-methylpyrrol-2-yl]-2-(5-nitropyridin-2-yl)-acetate (23 g) as an orange solid, mp 162.5-163.8° C. ##STR30##

Methyl 2-[(5-(4-methylbenzoyl)-1-methylpyrrol-2-yl]-2-(5-nitropyridin-2-yl)acetate (34.0 g, 86.4 mmol) [prepared as described in Example 5, Step (a)] was dissolved in a mixture of ethanol/THF (600 ml/200 ml) and subjected to catalytic hydrogenation over PtO₂ (0.7 g) in a Parr shaker apparatus at 30 psi for 4 h. The reaction mixture was filtered through Celite® and the filtrate was concentrated to dryness. Purification by flash chromatography (hexane-ethyl acetate) gave methyl 2-[(5-(4-methylbenzoyl)-1-methyl-pyrrol-2-yl]-2-(5-aminopyridin-2-yl)-acetate (22.0 g, 70% as a dark orange gum. ##STR31##

To a solution of methyl 2-[(5-(4-methylbenzoyl)-1-methylpyrrol-2-yl]-2-(5-amino-pyridin-2-yl)acetate (22.0 g, 60.5 mmol) [prepared as in Example 5, Step (b)] in methanol (400 ml) was added an aqueous solution of sodium hydroxide (5.8 g, 145.0 mmol) in 60 ml water. The dark brown reaction mixture was stirred overnight under argon, then acidified with 3 N HCl to pH 2.5 and stirred an additional 6 h. The reaction mixture was then neutralized with a saturated solution of sodium bicarbonate to pH 7.5. The resulting brown precipitate was filtered and purified by flash chromatography (hexane-ethyl acetate) to yield a solid. Recrystallization from hexane-ethyl acetate gave {2-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]-pyridin-5-yl}amine (10.2 g, 55%) as a light brown solid, mp 104-106.6° C.

Example 6 Synthesis of 4-[5-(2,4-Dimethylbenzoyl)-1-methylpyrrol-2-ylmethyl)aniline ##STR32##

To a suspension of 2,4-dimethylbenzoic acid (10 g, 66.59 mmol) in ethyl acetate (100 ml) was added oxalyl chloride (5.81 ml, 66.59 mmol), and the mixture was slowly heated to 40° C. After 1.5 h, the solvents were removed in vacuo, and the product 2,4-dimethylbenzoyl chloride was used in the next step without purification. ##STR33##

To a solution of 2,4-dimethylbenzoyl chloride (66.59 mmol) [prepared as described in Example 6, Step (a)] in cumene (150 ml) was added methyl 1-methylpyrrole-2-acetate (8 ml, 55.56 mmol) and lithium carbonate (6.16 g , 83.34 mmol), and the reaction mixture was heated to reflux. After 1.5 h, the reaction mixture was cooled to ambient temperature and the solvent was removed in vacuo. Purification by column chromatography (ethyl acetate-hexanes) gave methyl 2-[5-(2,4-dimethylbenzoyl)-1-methylpyrrole-2-acetate (4.03 g, 25%), as a waxy solid. ##STR34##

Methyl 2-[5-(2,4-dimethylbenzoyl)-1-methylpyrrole-2-acetate (2.75 g, 9.64 mmol) [prepared as described in Example 6, Step (b)] and 3,4-difluoronitrobenzene (1.28 ml, 11.56 mmol) were dissolved in anhydrous DMF (15 ml) and NaH (486 mg, 20.24 mmol) was added in portions at 0° C. The reaction mixture was stirred at 0° C. for 2 h, then quenched with 1N NaHSO₄, and partitioned between ether and 1N NaHSO₄. The organic layer was separated, dried over magnesium sulfate, and concentrated to dryness. Purification by column chromatography (ethyl acetate/hexane) gave methyl 2-[5-(2,4-dimethylbenzoyl)-1-methyl-pyrrol-2-yl)-2-(2-fluoro-4-nitrophenyl)acetate (3.56 g, 87%) as a pale yellow oil. ##STR35##

To a solution of methyl 2-[5-(2,4-dimethylbenzoyl)-1-methylpyrrol-2-yl)-2-(2-fluoro-4-nitrophenyl)acetate (3.51 g, 8.27 mmol) [prepared as described in Example 6, Step(c)] in 75 ml allyl alcohol was added titanium tetraisopropoxide (0.244 ml, 0.827 mmol), and the reaction mixture was heated to reflux. After 36 h, the reaction mixture was cooled to room temperature, and partitioned between ether and water. The organic layer was separated, dried over magnesium sulfate, and concentrated to dryness to give allyl 2-[5-(2,4-dimethylbenzoyl)-1-methylpyrrol-2-yl)-2-(2-fluoro-4-nitrophenyl)-acetate (3.60 g, 97%) as a pale yellow oil. ##STR36##

To a solution of allyl 2-[5-(2,4-dimethylbenzoyl)-1-methylpyrrol-2-yl)-2-(2-fluoro-4-nitrophenyl)acetate (3.6 g, 7.99 mmol) [prepared as described in Example 6, Step (d)] in anhydrous THF (40 ml) was added morpholine (6.99 ml, 79.90 mmol) and tetrakis(triphenylphosphine) palladium (9 mg, 0.008 mmol)). After 1.5 h, the solvent was evaporated and the residue was partitioned between ether and 1N NaHSO₄. The organic layer was separated, dried over magnesium sulfate, and concentrated to dryness. Purification by column chromatography (ethyl acetate/hexane) gave 4-[5-(2,4-dimethylbenzoyl)-1-methyl-pyrrol-2-yl-methyl)nitrobenzene (2.73 g, 93%) as a pale yellow oil. ##STR37##

4-[5-(2,4-Dimethylbenzoyl)-1-methylpyrrol-2-ylmethyl)nitrobenzene (923 mg, 2.52 mmol) [prepared as described in Example 6, Step(e)], was dissolved in ethyl acetate (10 ml). 10% Pd/C (92 mg) was added, and the reaction mixture was vigorously stirred under hydrogen atmosphere at ambient temperature and atmospheric pressure for 2 h. The mixture was filtered through Celite®, and the filtrate was evaporated to dryness to give 4-[5-(2,4-dimethylbenzoyl)-1-methylpyrrol-2-yl-methyl)aniline (718 mg, 85%) as pale yellow crystals, mp 107.6-108.5° C.

Example 7 Synthesis of 4-{5-(2,4-dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl}aniline ##STR38##

Methyl 1-methylpyrrole-2-acetate (5.0 g, 32.0 mmol) and 4-chloronitrobenzene (10.3 g, 65.0 mmol) were dissolved in DMF (30 ml) and the mixture was cooled in an ice bath under argon. Sodium hydride, 50% in mineral oil, (3.1 g, 64.0 mmol) was added in portions. After stirring for 1 h at room temperature the reaction mixture was poured into 1M HCl/ice and the product was extracted into ethyl acetate. The organic extracts were washed with water, dried over sodium sulfate, and concentrated to dryness. Purification on a Florisil® column (methylene chloride) gave methyl 2-(1-methylpyrrol-2-yl)-2-(4-nitrophenyl)acetate (4.13 g, 46%) as a solid. ##STR39##

Methyl 2-(1-methylpyrrol-2-yl)-2-(4-nitrophenyl)acetate (3.8 g, 14.0 mmol) [prepared as in Example 7, Step (a)] was dissolved in a 1:1 mixture of MeOH-THF (100 ml) and cooled in an ice bath under argon. A solution of 0.4 M lithium hydroxide (69 ml) was added and the reaction mixture was stirred at room temperature. After 2 h, the reaction mixture was poured into 1 M HCl/ice and extracted with ethyl acetate. The organic layer was washed with water, dried over sodium sulfate and concentrated under reduced pressure. The solid residue was redissolved in DMF (40 ml) and heated at reflux. After 20 min the reaction mixture was poured into ice/water and extracted with ethyl acetate. The organic layer was washed with water, dried over sodium sulfate and concentrated to dryness. Purification on a Florisil® column (hexane-ethyl acetate,9:1) gave 4-(1-methylpyrrol-2-yl-methyl)nitrobenzene (2.53 g, 82%) as a solid. ##STR40##

4-(1-Methylpyrrol-2-ylmethyl)nitrobenzene (1.2 g, 5.5 mmol) [prepared as in Example 7, Step (b)], 2,4-dimethylbenzoyl chloride (1.6 g, 9.5 mmol), and triethylamine (1.3 ml, 9.3 mmol) were dissolved in xylenes (50 ml), and the reaction mixture was heated at reflux under argon. After 48 h, the reaction mixture was passed through a Florisil® column (hexane followed by hexane-ethyl acetate, 95:5) to give 4-{5-(2,4-dimethylbenzoyl)-1-methyl-1H-pyrrol-2-yl-methyl}nitrobenzene (0.81 g, 42%) as a solid. ##STR41##

A mixture of 4-{5-(2,4-dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl}nitrobenzene (0.81 g, 2.3 mmol), [prepared as in Example 7, Step (c)], nickel boride (1.6 g), 1M HCl (30 ml), and methanol (30 ml) was refluxed for 30 min. The reaction mixture was filtered through a pad of Celite® and the filter cake was washed with ethyl acetate. The filtrate was cooled, made basic with concentrated ammonium hydroxide, and extracted with ethyl acetate. The organic layer was washed with brine, dried over sodium sulfate and concentrated to give 4-{5-(2,4-dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl}aniline (760 mg, 100%) as an oil.

Example 8 Synthesis of 3-{5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl}aniline ##STR42##

A solution of 1-methylpyrrole (10.0 g, 123.0 mmol), 3-nitrobenzoyl chloride (68.47 g, 369 mmol), and triethylamine (17.14 ml, 123 mmol) in xylenes (150 ml) was refluxed for 40 h. Purification of the reaction mixture on a Florisil® column (hexane-acetone, 85:15) gave 2-(3-nitrobenzoyl)-1-methylpyrrole (13.0 g, 46%) as a solid. ##STR43##

A mixture of 2-(3-nitrobenzoyl)-1-methylpyrrole (5.0 g, 21.7 mmol) [prepared as in Example 8, Step (a)], zinc iodide (10.38 g, 32.5 mmol), sodium cyanoborohydride (10.22 g, 162.7 mmol), and 1,2-dichloroethane (300 ml) was refluxed for 16 h. The reaction mixture was cooled to room temperature, filtered through Celite®, and then concentrated to dryness. Purification of the residue on a Florisil® column (hexane-acetone, 98:1) gave 3-(1-methylpyrrol-2-ylmethyl)nitrobenzene (3.55 g, 75%) as a solid. ##STR44##

3-(1-Methylpyrrol-2-ylmethyl)nitrobenzene (2.0 g, 9.2 mmol) [prepared as in Example 8, Step (b)], 4-methylbenzoyl chloride (2.84 g, 18.4 mmol), and triethylamine (2.0 ml, 14.3 mmol) were dissolved in xylenes (80 ml) and the reaction mixture was refluxed for 36 h. Purification on a Florisil column (hexane-ethyl acetate, 95:5) gave 3-{5-(4-methyl-benzoyl)-1-methyl-1H-pyrrol-2-ylmethyl}nitrobenzene (0.86 g, 28%) as a solid. ##STR45##

A mixture of 3-{5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl}-nitrobenzene (0.86 g, 2.6 mmol) [prepared as in Example 8, Step (c)], nickel boride (1.0 g), 10% HCl (13 ml), and methanol (35 ml) was heated at 65° C. for 40 min. The reaction mixture was cooled to room temperature, made basic with concentrated ammonium hydroxide, and filtered through Celite®. The product was extracted into ethyl acetate, and the organic extracts were washed with water and brine, and dried over sodium sulfate. Evaporation of the organics gave 3-{5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-yl-methyl}aniline (0.73 g, 99%) as a solid.

Example 9 Synthesis of 3,5-Difluoro-4-{5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl}aniline ##STR46##

The ethyl ester of zomepirac (4.66 g, 15.2 mmol) and 3,4,5-trifluorobenzonitrile (3.23 g, 20.6 mmol) were dissolved in DMF (75 ml) and NaH (60% in mineral oil, 1.28 g, 32.0 mmol) was added in portions under an argon atmosphere. The reaction mixture was heated at 60° C. for 2.5 h, then cooled to room temperature and added slowly to a mixture of ice/water (600 ml) containing 6N HCl (7.5 ml). The product was filtered and dried under vacuum. Recrystallization from ethyl acetate-hexane gave ethyl 2-[5-(4-chlorobenzoyl)-1,4-dimethyl-pyrrol-2-yl]-2-(2,6-difluoro-4-cyanophenyl)acetate (5.67 g, 84% yield) as yellow crystals, mp 155-155.5° C. ##STR47##

To a slurry of ethyl 2-[5-(4-chlorobenzoyl)-1,4-dimethylpyrrol-2-yl]-2-(2,6-difluoro-4-cyanophenyl)acetate (0.05 g, 0.11 mmol) [prepared as described in Example 9, Step (a)] in methoxyethanol (4 ml) was added an aqueous solution of lithium hydroxide monohydrate (0.02 g in 0.5 ml H₂ O), and the reaction mixture was heated at reflux under an argon atmosphere. After 24 hr, the reaction mixture was cooled to room temperature and poured into a mixture of ice/water (40 ml) containing 1N HCl (1 ml). The solid was filtered to give crude {4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]benzoic acid (0.037 g) as a tan solid. Flash chromatography on a silica gel column (0.5% acetic acid-30% acetone:hexane), followed by recrystallization from methanol-acetone gave pure {4-[5-(4-chloro-benzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]benzoic acid (0.032 g, 70.2% yield) as a white solid, mp 245-246.8° C. ##STR48##

Phosphoryl azide (1.0 ml, 4.61 mmol) was added to a mixture of {4-[5-(4-chloro-benzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]benzoic acid (1.49 g, 3.69 mmol) [prepared as described in Example 9, Step (b)], and triethylamine (0.77 ml, 5.54 mmol) in toluene at 0° C. under a nitrogen atmosphere. After stirring at room temperature for 10 min, the reaction mixture was heated to 100° C. over the course of 1 hr. After heating at 100° C. for 1 h, the reaction mixture was cooled to room temperature and trimethsilylethanol (1.06 ml, 7.38 mmol) was added. The reaction mixture was reheated and maintained at 50° C. for 1 h under a nitrogen atmosphere, and then the solvent was removed by evaporation under reduced pressure. The resulting yellow oil was redissolved in THF (100 ml) and tetrabutylammonium fluoride (10 ml, 1M soln. in THF) was added. After heating the reaction mixture at reflux for 3 h the solvent was removed in vacuo, and the residue was partitioned between ethyl acetate and water. The organic extracts were washed with water, dried over magnesium sulfate, and evaporated to give a yellow oil. Purification by chromatography on a silica gel column (25% ethyl acetate:hexane), followed by recrystallization from acetone-hexane gave 3,5-difluoro-4-{5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl}aniline (0.64 g, 64.4% yield) as white crystals, mp 208.2-210° C.

Example 10 Synthesis of 4-{5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl}phenol ##STR49##

4-{5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl}aniline (1.36 g, 4.0 mmol) [prepared by the method described in Example 1, but substituting zomepirac methyl ester and 4-fluoronitrobenzene for ethyl 5-benzoyl-1,4-dimethylpyrrole-2-acetate and 3,4-difluoro-nitrobenzene respectively, in Step (b)], was dissolved in acetic acid (20 ml), and a solution of 1N sulfuric acid in acetic acid (4.4 ml), followed by acetone (12.5 ml) was added. The reaction mixture was cooled to 6° C. and isoamyl nitrite (0.65 ml, 4.8 mmol) was added. After 1.5 h, the mixture was poured into ether and stored at 2° C. for 6 h. The purple precipitate was filtered, washed with ether and then suspended in acetone (50 ml). After adding sulfuric acid (20 ml, 0.1N), the reaction mixture was stirred at 60° C. for 3 h and then diluted with ethyl acetate and water. The organic layer was separated and washed with water, and dried over sodium sulfate. The solvent was removed in vacuo to give a deep red residue (0.8 g). Purification by flash chromatography (hexane-ether, 6:4), followed by recrystallization from hexane-acetone gave 4-{5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl}phenol (213 mg, 16%) as a solid, mp 183.4-185.1° C.

Example 11 Synthesis of N-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}acetamide. ##STR50##

A solution of N-{2-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl} amine (0.3 g, 0.88 mmol) [prepared by the method described in Example 5, but substituting zomepirac methyl ester for tolmetin methyl ester in Step (a)] and acetic anhydride (0.375 ml, 3.96 mmol) in THF was stirred at 60° C. for 4 h. The solvents were removed under reduced pressure and the residue was crystallized from hexane-chloroform to give N-{2-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-acetamide (295 mg, 88%) as a solid, mp 194-195° C.

Example 12 Synthesis of N-{2-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}formamide ##STR51##

The mixed anhydride of formic and acetic acid was prepared by adding formic acid (1 ml, 98%) dropwise to acetic anhydride (2 ml) and heating the mixture at 55° C. for 2.5 h. This reagent (2.2 ml) was then added to a solution of N-{2-[5-(4-chlorobenzoyl)-1,4-di-methyl-1H-pyrrol-2-ylmethyl]-pyridin-5-yl}amine (0.3 g, 0.88 mmol) in THF (7 ml), and the reaction mixture was heated overnight at 60° C. The solvents were removed in vacuo and the residue was crystallized from chloroform-hexane to give N-{2-[5-(4-chloro-benzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}formamide (175 mg, 54%) as a solid, mp 166.6-167.7° C.

Example 13 Synthesis of 1-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-(2-hydroxyethyl)urea ##STR52##

4-{5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl}aniline (0.33 g, 0.98 mmol) and 1,1'-carbonyldiimidazole (0.4 g, 2.46 mmol) were dissolved in DMF, and the reaction mixture was stirred at room temperature for 1 h. Ethanolamine (0.3 ml, 4.91 mmol) was added and after 1.5 h the mixture was diluted with water. The product was extracted into ethyl acetate, and the organic layer was dried over MgSO₄ and then concentrated under vacuum. Purification by flash chromatography (ethyl acetate), followed by recrystallization from hexane-chloroform gave 1-{4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-(2-hydroxyethyl)urea (239 mg, 57%) as a solid, mp 209.6-210.2° C.

Example 14 Synthesis of 1-{2-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2ylmethyl]pyridin-5-yl}-3,3-dimethylurea ##STR53##

{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}amine [prepared by the method described in Example 5, but substituting the methyl ester of zomepirac for the methyl ester of tolmetin in Step (a)] (0.45 g, 1.32 mmol) and dimethylcarbamoyl chloride (0.13 ml, 1.46 mmol) were dissolved in pyridine (6.6 ml), and the mixture was stirred at room temperature for 96 h. The solvents were removed in vacuo and the residue was crystallized from chloroform-hexane mixture to give 1-{2-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl }-3,3-dimethylurea (0.31 g, 57%) as a solid, mp 227.2-230.0° C.

Example 15 Synthesis of 1-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-methylurea ##STR54## {2-{5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}amine (0.3 g, 0.88 mmol) was dissolved in THF (4 ml), and the solution was cooled to 0° C. Methyl isocyanate (0.062 ml, 1.06 mmol) was added and the reaction mixture was stirred overnight at ambient temperature. Additional methyl isocyanate (0.062 ml) was added and the mixture was stirred for an additional 24 h. The reaction mixture was concentrated under vacuum and the residue was crystallized from hexane-chloroform to give 1-{2-[5-(4-chlorobenzoyl)-1,4-di-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-methylurea (240 mg, 69%), mp 234.0-235.5° C. Example 16 Synthesis of 1-{2-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-methyl-2-thiourea ##STR55##

N-{2-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}amine (0.3 g, 0.88 mmol) and methylisothiocyanate (0.3 ml, 4.4 mmol) were dissolved in THF and the reaction mixture was stirred at 60° C. overnight. The mixture was diluted with ethyl acetate and washed with 1N HCl, 10% sodium bicarbonate, water, and brine. The solvents were removed in vacuo and the crude product was purified by flash chromatography (ethyl acetate-methanol, 97:3) to give 1-{2-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-3-methyl-2-thiourea (265 mg, 73%) as a solid, mp 135° C.

Example 17 Synthesis of N-{3-Fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide ##STR56##

3-Fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline (1.0 g, 3.1 mmol) [prepared as described in Example 1] was dissolved in pyridine (10 ml) and the solution was cooled to -5° C. Methanesulfonyl chloride (0.39 g, 3.4 mmol) was added and after 1 h the reaction mixture was poured into 1M HCl/ice/water and extracted with ethyl acetate. The organic layer was washed with water, dried over sodium sulfate and concentrated to dryness. The residue was crystallized from methylene chloride-methanol to give N-{3-fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide (775 mg, 62%) as a solid, mp 165-167° C.

Proceeding as described in Example 17, but substituting 3-Cyano-4-[5-(4-chloro-benzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline [prepared by the method described in Example 4, but substituting the sodium salt of zomepirac for the sodium salt of tolmetin in Step (a) and 3-cyano-4-chloronitrobenzene for 3,4-dichloronitrobenzene in Step (b)], for 3-fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline gave N-{3-cyano-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide.

Proceeding as described in Example 17, but substituting {2-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}amine, [prepared by the method described in Example 5, but substituting the zomepirac methyl ester for the tolmetin methyl ester in Step (a)], for 3-fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline gave N-{2-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl }methane-sulfonamide.

Proceeding as described in Example 17, but substituting {2-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}amine, [prepared by the method described in Example 5], for 3-Fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline gave N-{2-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}-methanesulfonamide.

Proceeding as described in Example 17, but substituting 3-fluoro-4-[5-(2-methoxy-benzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]aniline [prepared by the method described in Example 1, but substituting 2-methoxybenzoyl chloride and methyl 1-methylpyrrole-2-acetate for benzoyl chloride and ethyl 1,4-dimethylpyrrole-2-acetate, respectively in Step (a)] for 3-fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-yl-methyl]aniline gave N-{3-fluoro-4-[5-(2-methoxybenzoyl)-1-methyl-1H pyrrol-2-yl-methyl]phenyl}-methanesulfonamide.

Proceeding as described in Example 17, but substituting {3-chloro-2-[5-(4-methoxy-benzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}amine [prepared by the method described in Example 4, but substituting methyl 5-(4-methoxybenzoyl)-1,4-dimethylpyrrole-2-acetate for the sodium salt of tolmetin in step (a) and 2,3-dichloro-4-nitropyridine for 3,4-dichloronitrobenzene in Step (b)], for 3-fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline gave N-{3-chloro-2-[5-(4-methoxybenzoyl)-1,4-dimethyl-1H-pyrrol-2-yl-methyl]pyridin-5-yl}methanesulfonamide.

Proceeding as described in Example 17, but substituting {2-[5-(4-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}amine [prepared by the method described in Example 5, but substituting the methyl ester of tolmetin for methyl 5-(4-methylbenzoyl)-1-methylpyrrole-2-acetate in Step (b)], for 3-fluoro-4-[5-benzoyl-1,4-dimethyl-1-pyrrol-ylmethyl]aniline gave N-{2-[-5-(4-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]-pyridin-5-yl}methanesulfonamide.

Example 18 Synthesis of N-{3-fluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide. ##STR57##

3-Fluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]aniline (0.75 g, 2.43 mmol) [prepared as described in Example 1, but substituting ethyl 1,4-dimethylpyrrole-2-acetate with methyl 1-methylpyrrole-2-acetate in Step (a)], and pyridine (0.39 ml, 4.88 mmol) were dissolved in methylene chloride (8 ml). 2-Acetoxyethanesulfonyl chloride (681 mg, 3.65 mmol) was added to the solution and after 15 min, the reaction mixture was partitioned between ethyl acetate and water. The organic layer was separated, washed with brine, dried over sodium sulfate and concentrated to dryness. Purification of the residue by flash chromatography (hexane-ethyl acetate, 3:2) gave N-{3-fluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(acetoxy)ethanesulfonamide, (643 mg, 58%) as a solid. ##STR58##

N-{3-Fluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(acetoxy)-ethanesulfonamide (0.415 g, 0.905 mmol) [prepared as in Example 18, Step (a)] was dissolved in methanol (5 ml) and a 2.0 M solution of ammonia in methanol (4.53 ml, 9.05 mmol) was added. The mixture was stirred for 60 h, after which it was concentrated to dryness. Purification of the residue by flash chromatography gave N-{3-fluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)-ethanesulfonamide (282 mg, 75%) as a solid.

Proceeding as described in Example 18, but substituting 3-fluoro-4-[5-(2,4-dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]aniline [prepared by the method described in Example 6], for 3-fluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]aniline gave N-{3-fluoro-4-[5-(2,4-dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)ethanesulfonamide.

Proceeding as described in Example 18, but substituting 3-fluoro-4-[5-(4-methyl-benzoyl)1-methyl-1H-pyrrol-2-ylmethyl]aniline [prepared by the method described in Example 1, but substituting the methyl ester of tolmetin for ethyl 5-benzoyl-1,4-di-methylpyrrole-2-acetate in step (b)], for 3-fluoro-4-[5-benzoyl-1-methyl-1H-pyrrol-2-ylmethyl]aniline gave N-{3-fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-yl-methyl]phenyl}-2-(hydroxy)-ethanesulfonamide.

Proceeding as described in Example 18, but substituting 3-fluoro-4-[5-(4-methoxy-benzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline [prepared by the method described in Example 1, but substituting 4-methoxybenzoyl chloride for benzoyl chloride in step (a)], for 3-fluoro-4-[5-benzoyl-(1-methyl-1H-pyrrol-2-ylmethyl]aniline gave N-{3-fluoro-4-[5-(4-methoxybenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(hydroxy)-ethanesulfonamide.

Example 19 Synthesis of N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}ethenesulfonamide ##STR59##

4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline (1.1 g, 3.25 mmol) was dissolved in pyridine (16.5 ml) and 2-chloroethanesulfonyl chloride (1.02 ml, 9.74 mmol) was added to the solution. The mixture was stirred for 1.5 h and then concentrated to dryness. The residue was filtered through a pad of silica gel (ethyl acetate) to give N-{4-[5-(4-chloro-benzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}ethenesulfonamide, (1.29 g, 93%) as a solid.

Example 20 Synthesis of N-{4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(dimethylamino)ethanesulfonamide hydrochloride ##STR60##

N-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-ethenesulfonamide (250 mg, 0.583 mmol) [prepared as in Example 19], was dissolved in DMF (1.1 ml). Triethylamine (0.11 ml, 0.8 mmol), followed by dimethylamine hydrochloride (36 mg, 0.69 mmol), was added and the reaction mixture was stirred for 1 h. A second batch of trimethylamine and dimethyamine hydrochloride was added and the stirring was continued overnight. The reaction mixture was partitioned between ethyl acetate and water, and the organic layer was separated and dried over sodium sulfate. The solvent was removed in vacuo and the crude product was then dissolved in ethyl acetate, after which ethanolic HCl was added to give N-{4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-2-(dimethyl-amino)ethanesulfonamide (257 mg, 86%) as the hydrochloride salt.

Example 21 Synthesis of N-{4-[5-(4-aminobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide ##STR61##

Methyl 1-methylpyrrole-2-acetate (5.32 g, 34.73 mmol) and 4-fluoro-nitrobenzene (4.9 g, 34.73 mmol) were dissolved in dry DMF (100 ml), and the solution was cooled to 0° C. under nitrogen. Sodium hydride powder (1.75 g, 72.93 mmol) was added in portions. After 30 min the reaction mixture was quenched with 1 M HCl and the product was extracted into ether. The organic extracts were washed with water and brine, and dried over magnesium sulfate. The solvent was removed in vacuo to give methyl-2-(1-methylpyrrol-2-yl)-2-(4-nitrophenyl)acetate (9.20 g, 97%) as a red oil. ##STR62##

Methyl 2-(1-methylpyrrol-2-yl)-2-(4-nitrophenyl)acetate (9.2 g, 33.54 mmol) [prepared as in Example 21, Step (a)], was dissolved in methanol (100 ml) and an aqueous solution of lithium hydroxide (3.52 g in 50 ml of water) was added. After 1.5 h the reaction mixture was concentrated to dryness in vacuo and the resulting residue was dissolved in water (100 ml). The solution was acidified to pH 1 with 6 M HCl and then extracted with ethyl acetate. The organic extracts were washed with water, and brine, and dried over magnesium sulfate. The solvent was removed in vacuo and the residue was purified by flash chromatography (hexane-ethyl acetate, 9:1) to give 4-(1-methylpyrrol-2-ylmethyl)nitrobenzene (4.8 g, 66%) as a yellow oil. ##STR63##

4-(1-Methylpyrrol-2-ylmethyl)nitrobenzene (500 mg, 2.31 mmol) [prepared as described in Example 21, Step (b)], was dissolved in ethyl acetate and subjected to hydrogenation over 5% Pd/C (50 mg) at ambient temperature and atmospheric pressure. After 3 h the mixture was filtered and the filtrate was concentrated to give 4-(1-methylpyrrol-2-yl-methyl)aniline (430 mg, 100%) as a yellow oil. ##STR64##

A mixture of 4-(1-methylpyrrol-2-ylmethyl)aniline (3.21 g, 17.23 mmol) [prepared as in Example 21, Step (c)], and triethylamine (8.4 ml, 60.27 mmol) was cooled to 0° C. under nitrogen. Methanesulfonyl chloride (4.2 ml, 54.26 mmol) was added and after for 1.5 h the reaction mixture was diluted with methylene chloride. The organic layer was separated and washed with 1 M aqueous sodium bisulfate, and brine and then dried over magnesium sulfate. Evaporation gave N-{4-(1-methylpyrrol-2-ylmethyl)phenyl}bismethanesulfonamide (6.63 g) as an orange foam which was used in step (e) without further purification. ##STR65##

N,N-dimethyl-4-nitrobenzamide (0.65 mg, 3.36 mmol) and phosphorus oxychloride were stirred together until the mixture became homogeneous. A solution of N-{4-(1-methylpyrrol-2-ylmethyl)-phenyl}-bis-methanesulfonamide (1.15 g) [prepared as described in Example 21, Step (d)], in dry dichloroethane (15 ml) was added and the stirring was continued overnight. Sodium bicarbonate (17 ml, 10% solution in water) was added and after 1.5 h the reaction mixture was cooled to room temperature, and diluted with methylene chloride. The organic layer was separated and washed with water and brine, and dried over magnesium sulfate. The solvent was removed in vacuo and the residue was purified by flash chromatography (hexane-ethyl acetate, 3:2) to give N-{4-[5-(4-nitro-benzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]-phenyl}bismethanesulfonamide (0.35 g, 25%) as an oil. ##STR66##

4-{5-[(4-Nitrobenzoyl)-1-methyl]-1H-pyrrol-2-ylmethyl]phenyl}bismethanesulfonamide (0.35 g, 0.712 mmol) [prepared as in Example 21, Step (e)], was dissolved in dioxane (4 ml) and an aqueous solution of lithium hydroxide (60 mg, 1.42 mmol in 1 ml of water) was added. After stirring for 60 h the mixture was partitioned between ethyl acetate and a 1 M sodium bisulfate solution. The organic layer was separated, washed with brine, and dried over sodium sulfate. Concentration gave N-{4-[5-(4-nitrobenzoyl)-1-methyl-1H-pyrrol-2-yl-methyl]phenyl}methanesulfonamide (294 mg) as a dark yellow oil which was used in the next step without further purification. ##STR67##

N-{4-[5-[(4-Nitrobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide (294 mg) [prepared as in Example 21, Step (f)], and an aqueous solution of ammonium chloride (0.3 g/2.5 ml water) were dissolved in ethanol (5 ml). Iron powder (0.2 g) was added and the reaction mixture was heated at reflux for 20 min. The mixture was filtered and the filter cake was washed with methylene chloride. The filtrate was diluted with ethyl acetate, washed with water, and brine, and dried over sodium sulfate. The solvent was removed in vacuo and the residue was purified by flash chromatography (hexane-ethyl acetate, 3:2). Recrystallization of the product from hexane-ethyl acetate gave N-{4-[5-(4-aminobenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide (175 mg, 64%) as a yellow powder.

Example 22 Synthesis of 1-{3-fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide ##STR68##

3-Fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline (1.0 g, 3.1 mmol) [prepared by the method described in Example 1], and N,N-dimethylsulfamoyl chloride (894 mg, 6.2 mmol) were dissolved in pyridine (10 ml) and stirred at 50° C. for 12 h. The reaction mixture was poured into 1M HCl/ice/water and extracted with ethyl acetate. The organic layer was separated, washed with water, dried over sodium sulfate and concentrated to dryness. The residue was triturated with methanol, filtered and then purified by preparatory thin layer chromatography TLC (hexane-ethyl acetate, 3:2). Crystallization from a chloroform-hexane mixture gave 1-{3-fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-yl-methyl]phenyl}-3,3-dimethylsulfamide (343 mg, 26%), mp 182-182° C.

Proceeding as described in Example 22, but substituting 4- [5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline [prepared by the method described in Example 1, but substituting methyl ester of zomepirac and 4-fluoronitrobenzene for ethyl 5-benzoyl-1,4-dimethylpyrrole-2-acetate and 3,4-difluoronitrobenzene respectively in Step (b)], for 3-fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline gave 1-{4-[5-(4-chloro-benzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3,3-dimethylsulfamide.

Example 23 Synthesis of 1-{3-Fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide ##STR69##

A 1M solution of aminosulfamoyl chloride was prepared by addition of a solution of water (1.44 g, 80.0 mmol) in ethylene glycol dimethyl ether (20 ml) to a solution of chlorosulfonyl isocyanate (7.0 ml, 80.0 mmol) in ethylene glycol dimethyl ether (60 ml) under nitrogen at -45° C. The reaction mixture was allowed to warm to room temperature slowly. This reagent solution (1.0 ml, 1.0 mmol) was added to a solution of 3-fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]aniline(322 mg, 1.0 mmol) and triethylamine (0.14 ml, 1.2 mmol) in dry methylene chloride at 5° C. under nitrogen. After 35 min, additional amounts of triethylamine (0.7 ml, 0.6 mmol) and aminosulfamoyl chloride solution (0.5 ml, 0.5 mmol) were added, and the reaction mixture was stirred for an additional 15 min. The reaction mixture was diluted with ethyl acetate and water, and the organic layer was separated, washed with 1M sodium bisulfate and brine, and dried over magnesium sulfate. The solvent was removed in vacuo and the solid residue was triturated with ether to give 1-{3-fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide (303 mg, 75%) as a tan powder.

Proceeding as described in Example 23, but substituting 3-fluoro-4-[5-(2,4-dimethylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]aniline [prepared by the method described in Example 6], for 3-fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-yl-methyl]aniline gave 1-{3-fluoro-4-[5-(2,4-dimethylbenzoyl)-1-methyl-1H-pyrrol-2-yl-methyl]phenyl}-sulfamide.

Proceeding as described in Example 23, but substituting 3-fluoro-4-[5-(4-chloro-benzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline [prepared by the method described in Example 1, but substituting the methyl ester of zomepirac for ethyl 5-benzoyl-1,4-dimethyl-pyrrole-2-acetate in Step (b)], for 3-fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-yl-methyl]aniline gave 1-{3-fluoro -4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]-phenyl}sulfamide.

Proceeding as described in Example 23, but substituting 3-cyano-4-[5-(4methoxy-benzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]aniline [prepared by the method described in Example 6, but substituting 4-methoxybenzoyl chloride for 2,4-dimethy-lbenzoyl chloride in Step (b) and 3-cyano-4-chloronitrobenzene for 3,4-difluoro-nitrobenzene in Step (c)], for 3-fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]aniline gave 1-{3-cyano-4-[5-(4-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}sulfamide.

Proceeding as described in Example 23, but substituting {2-[5-(4-methoxybenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]pyridin-5-yl}amine [prepared by the method described in Example 5, but substituting the methyl ester of tolmetin for methyl 5-(4-methylbenzoyl)-1-methylpyrrole-2-acetate in Step (b)], for 3-fluoro-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]aniline gave 1-{2-[5-(4-methoxybenzoyl)-1-methyl-1H-pyrrol-2-yl-methyl]pyridin-5-yl}sulfamide.

Example 24 Synthesis of 1-{4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-sulfamorpholide ##STR70##

1-{4-[5-(4-Chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}3,3-dimethylsulfamide (75 mg, 0.188 mmol) and triethylamine (0.047 ml, 0.376 mmol) were dissolved in benzene (0.4 ml). The reaction mixture was stirred for 15 min and then concentrated in vacuo. The yellow solid residue was redissolved in 1.0 ml of morpholine and heated at 65° C. for 24 h. The reaction mixture was partitioned between ethyl acetate and 5% aqueous HCl. The organic layer was separated, washed with water, and brine, and dried over sodium sulfate. Crystallization of the crude product from hexane-ethyl acetate gave 1-{4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-3-sulfa-morpholide (49 mg, 53%) as a solid, mp 126-127° C.

Example 25 Synthesis of N-{2-hydroxy-4-[5-(4-chlorobenzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide. ##STR71##

N-{2-Benzyloxy-4-[5-(4-chlorobenzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide (0.31 g, 0.59 mmol) was dissolved in ethyl acetate (50 ml). 10% Pd/C (93 mg) was added and the mixture was stirred under H₂ atmosphere for 2 h. The mixture was filtered through Celite® and the filtrate was evaporated to give a solid. Crystallization from hexane-acetone gave N-{2-hydroxy-4-[5-(4-chlorobenzoyl-1,4-dimethyl-1H-pyrrol-2-yl-methyl]phenyl}methanesulfonamide (200 mg, 78%) as a solid, mp 205° C. (dec.)

Example 26 Synthesis of N-{3-carboxy-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide ##STR72##

N-{3-Methoxycarbonyl-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide (735 mg, 1.54 mmol) and 2.5 N sodium hydroxide (2.5 ml) were dissolved in a 1:1 mixture of methanol-THF (40 ml) and stirred at room temperature for 64 h. The mixture was diluted with water, acidified to pH 2 with 2.0 N HCl, and extracted with ethyl acetate. The organic extracts were washed with brine, dried over sodium sulfate and concentrated to dryness. Crystallization from methylene chloride-methanol gave N-{3-carboxy-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]phenyl}-methanesulfonamide (500 mg, 70%) as a solid, mp 248-250° C. (dec.).

Example 27 Synthesis of N-{3-cyano-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]-phenyl}methanesulfonamide ##STR73##

N-{3-Bromo-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-ylmethyl]phenyl}methanesulfonamide (320 mg, 0.69 mmol) was dissolved in DMF. CuCN (120 mg, 1.38 mmol) was added and the suspension was refluxed for 4 h. The mixture was cooled to room temperature, and NaCN (2.0 g in 10 ml of water) was added. After 0.5 h the mixture was extracted with ethyl acetate and the extracts were washed with water, and brine, and dried over sodium sulfate. The solvent was removed in vacuo and the residue was purified by preparatory TLC (hexane-ethyl acetate) to give N-{3-cyano-4-[5-(4-methylbenzoyl)-1-methyl-1H-pyrrol-2-yl-methyl]phenyl}methanesulfonamide (190 mg, 67%) as a solid, mp 171-172° C.

Example 28 Synthesis of 3-fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline ##STR74##

3-Fluoro-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline (5.0 g, 14.0 mmol), sodium acetate (1.15 g, 14 mmol) and 10% Pd/C (475 mg) were suspended in ethanol (230 ml). The reaction mixture was shaken in a Parr apparatus under hydrogen atmosphere at 30 psi overnight. The mixture was filtered through Celite® and the filtrate was evaporated to dryness. The crude product was purified on a silica gel column (methylene chloride-methanol, 99:1) and then crystallized from ethyl acetate/hexane/cyclohexane to give 3-fluoro-4-[5-benzoyl-1,4-dimethyl-1H-pyrrol-2-yl-methyl]aniline (2.49 g, 55%) as a solid.

Example 29 Synthesis of 3-fluoro-4-[5-(4-methylthiobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline ##STR75##

3-Fluoro-4-[5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline (2.0 g, 5.6 mmol) was dissolved in degassed DMF. Sodium thiomethoxide (1.5 g, 22.4 mmol) was added and the mixture stirred at room temperature under argon for 24 h. The reaction was poured into ice-water, acidified with acetic acid to pH 3 and extracted with ethyl acetate. The organic extracts were washed with water, and brine, and dried over magnesium sulfate. The solvent was removed in vacuo and the crude product was purified on a silica gel column (methylene chloride-methanol-acetone, 96:2:2) to give 3-fluoro-4-[5-(4-methylthiobenzoyl)-1,4-dimethyl-1H-pyrrol-2-ylmethyl]aniline (1.13 g, 55%) as a solid, mp 199.1-199.7° C.

Example 30

The following are representative pharmaceutical formulations containing a compound of formula I.

Tablet Formulation

The following ingredients are mixed intimately and pressed into single scored tablets.

    ______________________________________                                                            Quantity per                                                  Ingredient tablet, mg                                                        ______________________________________                                         compound of this invention                                                                        400                                                           cornstarch 50                                                                  croscarmellose sodium 25                                                       lactose 120                                                                    magnesium stearate 5                                                         ______________________________________                                    

Capsule Formulation

The following ingredients are mixed intimately and loaded into a hard-shell gelatin capsule.

    ______________________________________                                                            Quantity per                                                  Ingredient capsule, mg                                                       ______________________________________                                         compound of this invention                                                                        200                                                           lactose, spray-dried 148                                                       magnesium stearate 2                                                         ______________________________________                                    

Suspension Formulation

The following ingredients are mixed to form a suspension for oral administration.

    ______________________________________                                         Ingredient            Amount                                                   ______________________________________                                         compound of this invention                                                                           1.0      g                                                 fumaric acid 0.5 g                                                             sodium chloride 2.0 g                                                          methyl paraben 0.15 g                                                          propyl paraben 0.05 g                                                          granulated sugar 25.5 g                                                        sorbitol (70% solution) 12.85 g                                                Veegum K (Vanderbilt Co.) 1.0 g                                                flavoring 0.035 ml                                                             colorings 0.5 mg                                                               distilled water q.s. to 100 ml                                               ______________________________________                                    

Injectable Formulation

The following ingredients are mixed to form an injectable formulation.

    ______________________________________                                         Ingredient             Amount                                                  ______________________________________                                         compound of this invention                                                                            0.2 g                                                     sodium acetate buffer solution, 0.4 M 2.0 ml                                   HCl (1N) or NaOH (1N) q.s. to suitable pH                                      water (distilled, sterile) q.s. to 20 ml                                     ______________________________________                                    

Topical Formulation

A topical formulation is prepared with the following ingredients.

    ______________________________________                                         Ingredient          Amount, g                                                  ______________________________________                                         compound of this invention                                                                         10                                                           Span 60 2                                                                      TWEEN ® 60 2                                                               mineral oil 5                                                                  petrolatum 10                                                                  methyl paraben 0.15                                                            propyl paraben 0.05                                                            BHA (butylated hydroxy anisole) 0.01                                           water q.s. to 100                                                            ______________________________________                                    

All of the above ingredients, except water, are combined and heated to 60-70° C. with stirring. A sufficient quantity of water at 60° C. is then added with vigorous stirring to emulsify the ingredients, and water then added q.s. to 100 g.

Suppository Formulation

A suppository of total weight 2.5 g is prepared by mixing the compound of the invention with Witepsol® H-15 (triglycerides of saturated vegetable fatty acid; Riches-Nelson, Inc., New York), and has the following composition:

    ______________________________________                                         compound of the invention                                                                              500 mg                                                   Witepsol ® H-15 balance                                                  ______________________________________                                    

Example 31 Inhibition of COX I and COX II in vitro

The COX I and COX II inhibitory activity of compounds of this invention in vitro was determined using partially purified COX I and COX II enzymes, prepared as described in J. Barnett et al., Biochim. Biophys. Acta, 1209:130-139 (1994).

COX I and COX II samples were diluted with Tris-HCl buffer (50 mM Tris-HCl, pH 7.9) containing 2 mM EDTA and 10% glycerol and reconstituted by incubating first with 2 mM phenol for 5 minutes and then with 1 micromolar hematin for an additional 5 minutes. 125 μl of the reconstituted COX I or COX II enzyme were preincubated for 10 minutes at room temperature in a shaking water bath with the compounds of the invention dissolved in 2-15 μl of DMSO or the carrier vehicles (control samples). The enzyme reaction was initiated by adding 25 μl of 1-[14C]arachidonic acid (80,000-100,000 cpm/tube; 20 micromolar final concentration) and the reaction was allowed to continue for an additional 45 seconds. The reaction was terminated by adding 100 μl of 2 N HCl and 750 μl water. An aliquot (950 μl) of the reaction mixture was loaded onto a 1 ml C₁₈ Sep-Pak column (J. T. Baker, Phillipsburg, N.J.) which had been previously washed with 2-3 ml methanol and equilibrated with 5-6 ml distilled water. Oxygenated products were quantitatively eluted with 3 ml of acetonitrile/water/acetic acid (50:50:0.1, v/v) and the radioactivity in the eluate determined in a scintillation counter.

Compounds of this invention were active in this assay.

COX inhibitory activities (expressed as IC₅₀, the concentration causing 50% inhibition of the COX enzyme being assayed) of some compounds of the invention and indomethacin as a comparator, were:

    ______________________________________                                               COX I     COX II          COX I  COX II                                    CPD#  IC.sub.50, μM IC.sub.50, μM CPD# IC.sub.50, μM IC.sub.50,                                             μM                                  ______________________________________                                         1     11        0.15     206    0.46   0.24                                      11 7.5 0.51 222 0.46 0.074                                                     19 0.76 0.08 223 0.064 0.029                                                   27 415 0.063 226 100 2.1                                                       28 33 0.19 227 2.5 0.1                                                         31 3.9 0.045 228 8.5 0.1                                                       36 10 0.05 235 8.2 0.17                                                        38 0.27 0.065 236 15 0.51                                                      48 61 0.08 243 100 8.9                                                         60 0.16 0.028 250 34 27.4                                                      63 0.035 0.33 251 310 0.64                                                     66 6.9 0.12 263 49 0.45                                                        68 0.86 0.073 267 210 0.7                                                      71 38 0.16 271 89 0.43                                                         72 265 0.7 272 >1000 2.1                                                       88 <0.1 0.06 276 60 0.5                                                        95 0.09 0.06 284 22 0.50                                                       97 <0.1 0.038 288 235 0.55                                                     98 <0.1 0.23 289 10.2 1.5                                                      104 0.75 0.24 294 9.1 2.6                                                      106 0.95 0.07 295 0.60 0.10                                                    131 0.20 0.077 296 0.21 0.40                                                   133 0.045 0.058 306 113 0.64                                                   140 5.4 0.12 308 650 8.75                                                      141 3.9 0.03 310 142 9.2                                                       146 2.9 0.06 314 65 0.56                                                       147 0.6 0.1 316 360 0.20                                                       154 34 0.054 329 256 43.7                                                      165 16.8 0.095 330 61.1 30                                                     172 43 0.09 333 NA 78.4                                                        177 0.79 0.30 334 18.3 0.64                                                    196 5.0 0.04 340 0.02 0.06                                                     197 <0.1 0.07 343 6.6 0.54                                                     202 3.2 0.05 Indo- 0.4 14                                                         methacin                                                                  ______________________________________                                    

Example 32 Anti-inflammatory Activity

The anti-inflammatory activity of compounds of this invention was determined by measuring the inhibition of carrageenan-induced paw edema in the rat, using a modification of the method described in Winter C. A. et al. (1962) "Carrageenan-Induced Edema in Hind Paw of the Rat as an Assay for or Anti-inflammatory Drugs." Proc. Soc. Exp. Biol. Med. 111: 544-547. This assay has been used as a primary in vivo screen for anti-inflammatory activity of most NSAIDs, and is considered predictive of human efficacy. Briefly, test materials were administered orally to female rats in a volume of 1 ml prepared as solutions or suspensions in an aqueous vehicle containing 0.9% NaCl, 0.5% sodium carboxymethyl-cellulose, 0.4% polysorbate 80, 0.9% benzyl alcohol and 97.3% distilled water. Control rats received vehicle alone. After 1 h 0.05 ml of a 0.5% solution of Carrageenan (Type IV Lambda, Sigma Chemical Co.) in 0.9% saline was injected into the subplantar region the right hind paw. Three hours later the rats were euthanized in a carbon dioxide atmosphere; hind paws were removed by severing at the tatso-crural joint; and the left and right paws were weighed. The increase in weight of the right paw over the left paw was obtained for each animal and the mean increases were calculated for each group. The anti-inflammatory activity of the test materials is expressed as the percent inhibition of the increase in hind paw weight of the test group relative vehicle-dosed control group.

Compounds of this invention were active in this assay.

activities (expressed as % inhibition) of some of the compounds of the invention at 10 mg/Kg were:

    ______________________________________                                         CPD#     % Inhibition  CPD#    % Inhibition                                    ______________________________________                                         19       36            146     40                                                36 31 165 17                                                                   48 35 263 40                                                                   98 42 288 20                                                                   140 27 343 35                                                                ______________________________________                                    

Example 33 Inhibition of Eicosanoid Synthesis in vivo

The activity of compounds of this invention in inhibiting in vivo eicosanoid (prostaglandin E₂) synthesis in inflamed tissues was determined by the carrageenan-induced inflammation (air-pouch model) in rats, using a modification of the method described in Futaki, M., et al.; (1993) "Selective Inhibition of NS-398 on prostanoid production in inflamed tissue in rat Carrageenan Air-pouch Inflammation," J. Pharm. Pharmacol. 45:753-755, and Masferrer, J. L., et al.; (1994) "Selective Inhibition of inducible cyclooxygenase 2 in vivo is Antiflammatory and Nonulcerogenic," Proc. Natl. Acad. Sci. USA. 91: 3228-3232. In this assay, an air-pouch is created in the rat and the PGE₂ levels in the air-pouch exudate are measured by enzyme immunoassay. Briefly, male rats were anesthetized using a 60:40 CO₂ :O₂ mixture and subsequently injected subcutaneously with 20 ml of sterilized air, under aseptic conditions, in the proximal area of the dorsum. This injection of sterile air causes the creation of a subcutaneous "air pouch". The next day, a further 10 ml of sterile air was injected into the previously formed pouch using the same technique. The test materials were administered orally in a volume of 1 ml/100 g body weight as solutions or suspensions in an aqueous vehicle containing 0.9% NaCl, 0.5% sodium carboxymethyl-cellulose, 0.4% polysorbate 80, 0.9% benzyl alcohol and 97.3% water. Control rats received vehicle alone. After 30 minutes, 5 ml of a 0.5% solution of arrageenan (Sigma, Lambda Type IV) was injected into the air pouch. The rats were euthanized 3 or 6 h after the compound administration. 10 ml of a solution containing 10 μg/l of indomethacin and 5.4 mM EDTA in 0.9% sterile saline was injected into the air pouch; the air pouch was cut open; and the exudate was harvested. The total exudate volume was recorded, and the samples were analyzed for PGE₂ and 6-keto PGF₁ by ELISA (Titerzyme®, PerSeptive Diagnostic) and TxB₂ by radioimmuno assay (New England Nuclear Research, Catalog No. NEK-037), to the manufacturer's directions.

The mean concentrations of PGE₂ were calculated for each group. The anti-inflammatory activity of test is expressed as the percent inhibition of PGE₂ formation in the test group relative to the group.

Compounds of this invention were active in this assay.

The anti-inflammatory activities (expressed as % inhibition of air pouch PGE₂ formation) of some of the compounds of this invention and indomethacin as a comparator were:

    ______________________________________                                         CPD#       Dose mg/Kg    % Inhibition                                                                             Time                                        ______________________________________                                         19         10            74%       3 hr                                          36 10 96% 3 hr                                                                 48 30 64% 3 hr                                                                 98 10 98% 3 hr                                                                 140 30 83% 6 hr                                                                146 10 93% 3 hr                                                                165 10 52% 3 hr                                                                236 30 71% 6 hr                                                                263 30 80% 6 hr                                                                271 10 56% 3 hr                                                                284 10 65% 3 hr                                                                288 10 53% 3 hr                                                                334 10 44% 3 hr                                                                Indomethacin 2-5 >70%                                                        ______________________________________                                    

Example 34 Analgesic Activity

The analgesic activity of compounds of this invention may be determined by the Acetic Acid-induced Rat Writhing Assay, using a modification of the method described in Berkenkopf, J. W. and Weichman, B. M. "Production of Prostacyclin in Mice following Intraperitoneal Injection of Acetic Acid, Phenylbenzoquinone and Zymosan: Its Role in the Writhing Response," Prostaglandins: 36: 693-70 (1988). This assay is one of several acute assays which have been used to assess the analgesic activity of NSAIDs, and is considered predictive of human efficacy. The test materials were administered orally to male Sprague Dawley rats in a volume of 1 m/100 g body weight as solutions or suspensions in an aqueous vehicle containing 0.9% NaCl, 0.5% sodium carboxymethyl-cellulose, 0.4% polysorbate 80, 0.9% benzyl alcohol and 97.3% water. Control rats received vehicle alone. One hour after compound administration, 0.3 ml/100 g body weight of 0.75% solution of acetic acid was injected intraperitoneally. The acetic acid injection induces a series of characteristic writhing responses, which were counted over the period between 15 and 30 minutes after the injection. The analgesic activity of test materials is expressed as the percentage inhibition of writhing in the test group relative to the control group.

Compounds of this invention were active in this assay. The analgesic activities (expressed as % inhibition of writhing responses) of some of the compounds of this invention at 10 mg/Kg were:

    ______________________________________                                         CPD#     % Inhibition  CPD#    % Inhibition                                    ______________________________________                                         36       16            140      4                                                98 71 263 31                                                                 ______________________________________                                    

The analgesic activity of compounds of this invention may also be determined using an adjuvant-induced arthritis pain model in the rat, where pain is assessed by the animal's vocal response to the squeezing or flexing of an inflamed ankle joint, as described in Winter C. A. and Nuss, G. W. (1966) "Treatment of Adjuvant Arthritis in rats with Antiinflammatory Drugs," Arthritis Rheum. 9: 394-403 and Winter, C. A., Kling P. J., Tocco, D. J., and Tanabe, K. (1979). "Analgesic activity of Diflunisal [MK-647; 5-(2,4-Difluorophenyl)salicylic acid] in Rats with Hyperalgesia Induced by Freund's Adjuvant" J. Pharmacol. Exp. Ther. 211: 678-685. 

What is claimed is:
 1. A method of treating an inflammatory disease or an autoimmune disease in a mammal by inhibiting prostaglandin G/H synthase comprising administration to the mammal of a therapeutically effective amount of a compound selected from the group of compounds represented by formula I: ##STR76## where: R₁ and R₅ are independently H or alkyl;R₃ and R₄ are independently H, halo, alkyl, alkyloxy, or alkylthio; R₁₀ is a group represented by formula (A), (B) or (C): ##STR77## where: X is O or S; R₁₂ and R₁₆ are independently H, halo, alkyl, alkyloxy, alkylthio, cyano, or hydroxy; R₁₃ and R₁₅ are independently H, halo, alkyl, alkyloxy, or alkylthio; and R₁₄ is H, halo, alkyl, haloalkyl, amino, alkylamino, dialkylamino, alkyloxy, hydroxy, alkylthio, alkenyl, alkynyl, cyano, --SO₂ R₁₇ where R₁₇ is alkyl, or --SO₂ NR₁₈ R₁₉ where R₁₈ and R₁₉ are independently H or alkyl;provided that at least two of R₁₂, R₁₃, R₁₄, R₁₅ and R₁₆ are H, and that if only two of R₁₂, R₁₃, R₁₄, R₁₅, and R₁₆ are H, the non-hydrogen substituents are not all adjacent; or R₁₂, R₁₅, and R₁₆ are H and R₁₃ and R₁₄ together are --OCH₂ O--; R₂₀ is a group represented by formula (U), (V) or (W): ##STR78## where: R₂₂ is H, halo, alkyl, cyano, trifluoromethyl, hydroxy, alkyloxy, or -CO₂ R₂₇ where R₂₇ is H or alkyl; one of R₂₃, R₂₄, and R₂₅ is R₃₀ ; and either all the remaining R₂₃, R₂₄, R₂₅, and R₂₆ are H; or one of the remaining R₂₃, R₂₄, R₂₅, and R₂₆ is halo, alkyl, cyano, trifluoromethyl, hydroxy, or alkyloxy; and R₃₀ is --OH*, --NHH*, --NH*CHO, --NH*C(X)R₃₁, --NH*SO₂ R₃₁, --NH*C(X)NR₃₂ R₃₃, or --NH*SO₂ NR₃₂ R₃₄,where: H* is hydrogen, optionally replaced by an in vivo hydrolyzable protecting group; R₃₁ is alkyl, haloalkyl, hydroxyalkyl, alkenyl, benzyl, aryl, cycloamino, --CH₂ SO₂ Me, or --(CH₂)_(n) R₃₅, where n is an integer from 2 to 5 and R₃₅ is alkylamino, dialkylamino, cycloamino, alkyloxy, acyloxy, or --CO₂ R₂₇ ; R₃₂ is H, alkyl, or --(CH₂)_(n) OR₂₇ ; R₃₃ is H, alkyl, haloalkyl, aryl, hydroxyalkyl, tetrahydrofuran-2-ylmethyl, --CH₂ CO₂ R₂₇, or --(CH₂)_(n) R₃₅ ; and R₃₄ is H, alkyl, acetyl, hydroxyalkyl, or --(CH₂)_(n) R₃₅ ;and their pharmaceutically acceptable salts.
 2. The method of claim 1 where R₂₀ is a group represented by formula (U) or (V) and R₂₄ is R₃₀.
 3. The method of claim 2 where R₁₀ is a group represented by formula (A) and R₁ is alkyl.
 4. The method of claim 3 where R₃ is H or alkyl; R₄, R₅, R₁₅, and R₁₆ are H; and R₁₃ is H, halo, or alkyl.
 5. The method of claim 4 where R₃₀ is --NHH*, --NH*SO₂ R₃₁, or --NH*SO₂ NR₃₂ R₃₄. 